The next few generations of the Duramax delivered solid upgrades to the design. Most companies would have made these running changes, but GM identified each revision as a different model. The next revision, referred to as the LLY, was a mid-year change in 2004. The easiest way to tell whether the engine is an LB7 or an LLY is by the …The LB7 Duramax was first introduced for the 2001 model year in the Chevrolet Silverado HD, GMC Sierra HD, GMC TopKick (medium duty) and Chevrolet Kodiak (medium duty) trucks. That year also brought the Allison 1000, arguably the first automatic transmission in its class worthy of being mated to a powerful diesel.Fifth Generation Sierra 2500HD Production Years: 2024 GMC Sierra 2500HD Review. TRIM ENGINE TRANSMISSION DRIVETRAIN GMTT1XX Pro 6.6L Turbo V8 Diesel 6.6L V8 Gas 10-Speed Automatic ...I’ve compiled many reports from various forums and blogs. According to them, I recommend avoiding the following Duramax year models: 2001 – 2004 Duramax LB7. 2004.5 – 2005 Duramax LLY. 2006 – 2007 Duramax LBZ. 2008 – 2010 Duramax LMM. 2007 – 2012 Duramax LML. These specific engine models have received a lot of complaints.Here are a few top places that hire 14 and 15 year olds as employees, plus a few other money-making ideas! Start making money this month. Home Make Money Looking for places that h...Three of the four real estate billionaires who placed highest—in their industry—on last year’s Forbes China Rich List have seen their combined net worth shrink by $2.05 billion in ...Aug 10, 2023 ... While it is not right for everyone, the math does not lie. In some situations, driving a new truck every year is cheaper than keeping one ...The 6.6-liter LBZ Duramax V8 diesel engine was introduced midway through the 2006 model year, when it replaced the 6.6 liter LLY Duramax variant. As such, it powered Chevrolet Silverado Heavy-Duty ...2011 – 2016 Duramax LML. 2011 – present Duramax XLD25. 2012 – present Duramax XLD28. 2014 – present Duramax LWN. 2017 – present Duramax L5P. 2019 – present Duramax LM2. Duramax Engine Year …After a number of years, GM aimed to make smaller Duramax diesel engines for its vehicles, which began with inline-four engines in displacements of 2.5L and 2.8L, though they discontinued these ...The LB7 was introduced in 2001 and used until early 2004 before it was replaced with the LLY Duramax. What Year of LB7 is the Best? Although all years of the LB7 potentially had a few issues, including problems with the head gasket, the LB7 Duramax injectors, and the fuel filter housing o-rings, the LB7 is generally considered a …Mar 21, 2023 · The 6.6-liter Duramax LBZ was a short-lived engine only available for two model years. To meet increasingly strict emissions standards, the LBZ was a more aggressively tuned version of the previous LLY engine. Mechanically, the LBZ used the same Duramax parts as the LLY, but the LBZ generated 360 horsepower, while the LLY only generated 310 ... The GM Duramax 3.0L I-6 LM2 is a turbo-diesel engine produced by General Motors for use in various vehicles, primarily full-size half-ton pickup trucks and full-size SUVs. ... 2019 model year ...Feb 26, 2014 · The next few generations of the Duramax delivered solid upgrades to the design. Most companies would have made these running changes, but GM identified each revision as a different model. The next revision, referred to as the LLY, was a mid-year change in 2004. The easiest way to tell whether the engine is an LB7 or an LLY is by the valve covers. LBZ Duramax Specifications. Manufactured Years: 2006-2007. Engine Design: 6.6L 90-Degree V8 Turbocharged Diesel. Transmission: 6-Speed Auto Allison 1000 Transmission. ZF650 Manual Transmission. Vin Identification:Feb 1, 2023 · Which Duramax years to avoid? There are great Duramax engine models out there for you to try; however, there are specific model years that you should avoid. Below, we give a rundown of these years to avoid. Duramax LB7: 2001-2004 model years. As the first Duramax model to be released, the LB7 is still very popular among diesel enthusiasts due ... 6.6L Duramax Diesel Timeline. The Duramax diesel was introduced in 2001 at 300 horsepower and 520 lb-ft of torque and has since evolved to produce 445 horsepower and 910 lb-ft of torque. While certain generations of the Duramax represent little more than more aggressive engine calibrations, others can nearly be classified as clean-slate designs ...rynburns. • 8 yr. ago. The LBZ is the best Duramax chevy ever built. Non invasive emissions equipment, easier to work on (for the most part) and easily an acceptable ammount of power. I would only change a couple things if I had one; the stupid fan shroud thing that bolts to the heads/block would go for sure, it makes life a pain in the ass ...Jan 25, 2014 ... 5 tunes, Stock, Heavy Tow, Light Tow, Performance Economy, and Race. Stock HP, 60,80,100, and 130. The truck runs much smoother with the tunes ...GMC Sierra 3500HD. With a few periodic dips in fuel efficiency through the years, the GMC Sierra 3500HD has stayed steady with a fuel economy right around 13.5 miles per gallon. With the 3500HD having a slightly larger body than the 2500HD, it’s not surprising that the fuel economy takes a bit of a hit.Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain are they interchangeable? Jump to Latest ... He runs his at Glamas and blew an engine a couple years ago. Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon replacement Aero tank, LBZ …See full list on chevytrucks.org Duramax diesel has been an option across a complete line of light and medium-duty trucks, cars, and Duramax is a cooperative undertaking between General Motors and Isuzu. What Year Chevrolet and GMC Trucks Require DEF. In 2007, Duramax produced a 6.6L engine with new diesel particulate filter technology.2017-2019 Chevrolet HD and GMC HD trucks with the L5P Duramax have a max tow capacity of 23,300 lbs. In 2020, GM’s engineers overhauled the trucks and increased tow capacity by 52%. 2020 …2006-2007 LBZ has the problems from previous generations fixed, and now the weak link is pistons. These also have 6 speed transmissions instead of the 5 speeds. 2007.5-2010 LMM has the DPF system but is otherwise the same as the 2006-2007 LBZ. 2011-2016 LML has DPF and DEF. Changed the injection pump from a CP3 to a CP4.Newer body style ones have a tone of emissions junk on them. This year is the best IMO. Jason. 2006 Silverado 2500HD LBZ CC SB. Exterior: Escalade Handles, Front windows tinted to match the rear, painted bumpers & mirrors, billet grille, 305/50/20 Cooper Zeons on BMF Novakanes Death Metal, Cognito Braces, Stainless Sleeves, …Maintenance requirements (oil, filter changes) for a diesel engine are about the same as for gas-powered vehicles. Duramax engines are known for their reliability and come standard with a 5-year/60,000-mile limited warranty on 2.8L Turbo-Diesel engines, or a 5-year/100,000-mile limited warranty on 3.0L and 6.6L Turbo-Diesel engines.Nov 29, 2018 · The RHG6 model turbocharger aboard the LB7 marked the only time a fixed geometry unit was used on a Duramax. Manufactured by IHI Turbo America, the RHG6 sported a 60.6mm (inducer) compressor wheel and a 68mm (exducer) turbine wheel, along with a wastegate. In factory form, the IHI charger sees a maximum peak boost of 22 to 24 psi. The Duramax engine has been one of the most popular diesel engines in the US for over two decades. Duramax is a heavy-duty V8 diesel engine co-developed by GM and Isuzu. It was introduced in 2001 as the upgrade for the 6.2L and 6.5L Detroit engines. It turned out to be a competent and powerful competitor in the light diesel market. The engine has undergone various improvements over the years ...The Duramax 2.8-liter turbodiesel I-4 only makes 181 hp, but its 369 lb-ft of torque gets the little(ish) Chevy truck moving with authority. ... our year with the 2016 Chevrolet Colorado Z71 4x4 ...November 20, 2023 by Alex Jones. Duramax started using def in their diesel engines in 2011 for compliance with federal emissions regulations. Duramax implemented def to reduce nox emissions and meet stricter epa guidelines on diesel exhaust fluid emissions. Diesel engines are popular due to their long-lasting performance and fuel efficiency.The LBZ engine is more powerful, with 360 horsepower and 650 lb-ft of torque at 1600rpm. On the other hand, the LLY engine has 310 horsepower and 605 lb-ft of torque at 1,600rpm. So, if you’re looking for more power and performance, the LBZ engine is the way to go. The LBZ Duramax has an engine capacity of 6.6 liters, providing enough …Advertisement The success of your New Year's resolutions starts with your head. Limiting yourself to a few resolutions, maybe even one, and being specific are a few things to keep ...The 2007 to 2010 model years of 2500 HD and 3500 trucks featured a new body style, vastly improved interior, and the first version of the Duramax LMM engine to have an exhaust after-treatment process that required fuel for it to function.Data from the Federal Reserve says the average 70-year-old has roughly $400,000 in savings. Here's how it compares with their retirement needs. Calculators Helpful Guides Compare R...HP Potential: LLY. With the largest version of the factory Garrett GT3788VA turbocharger bolted to it, the LLY (found in ’04.5-’05.5 trucks) has arguably the most tune-only horsepower potential of any Duramax produced between 2001 and 2016. Thanks to its 62.6mm inducer compressor wheel and the tallest turbine vane height (15mm) of any ...Here is a list of the best Duramax year models: 2010-2017 Duramax LGH. 2017-2021 Duramax L5P. 2019-021 Duramax LM2. 2014-2021 Duramax LWN. And here are the Duramax year models to avoid: 2001-2004 Duramax LB7. 2004-2005 Duramax LLY: 2006-2007 Duramax LBZ.Duramax History, Lesson 2: LLY. Midway through the 2004 model year, GM released the second-generation Duramax, RPO code LLY. Although much of the LLY’s internals match what you’ll find in the LB7, this version of the 6.6L V8 brought an improved injector design, variable geometry turbocharging and cleaner emissions to the table.rynburns. • 8 yr. ago. The LBZ is the best Duramax chevy ever built. Non invasive emissions equipment, easier to work on (for the most part) and easily an acceptable ammount of power. I would only change a couple things if I had one; the stupid fan shroud thing that bolts to the heads/block would go for sure, it makes life a pain in the ass ...Best Duramax years. The Duramax can be an excellent engine for your truck if you avoid the model years above and stick to its durable and reliable ones. Below, we …Fuel System Problems. Your Duramax relies on a clean and unobstructed fuel supply. Issues with the fuel filter, fuel line, or fuel injectors can cause reduced engine power. A faulty injector can disrupt the fuel mixture, and clogged fuel filters restrict fuel flow, both potentially leading to limp mode activation for protection.Written By: L.T. Tolman. We’re in the middle of a three-part journey which takes a deep dive into the most popular late model diesel powerplants used in pickup trucks, and todays subject will be the various …HP Potential: LLY. With the largest version of the factory Garrett GT3788VA turbocharger bolted to it, the LLY (found in ’04.5-’05.5 trucks) has arguably the most tune-only horsepower potential of any Duramax produced between 2001 and 2016. Thanks to its 62.6mm inducer compressor wheel and the tallest turbine vane height (15mm) of any ...It’s one of the major reasons this L5P is the highest stock horsepower Duramax to ever hit the market. 3. No More CP4 Pump. I can already hear the clapping, which makes sense. The prior pump truly ran into a lot of issues. This has to be one of the reasons why GM went with Denso’s HP4 pump.Banks explains that the new 2024 L5P Duramax engine boasts pistons with a more “pointed” area in the center of the piston which nearly mimics the racing-style pistons they [Banks] designed years ago. This design is the perfect mixture of a lean area and a rich area of the piston which results in fewer pollutants.L5P Duramax, 2017-present Basically, GM took everything they learned over the last 15 years, threw out the old blueprints, and started with a clean sheet, and the resulting L5P is the most powerful Duramax ever, producing 445hp and 910 pounds of torque.Feb 15, 2023 ... I bought an old Duramax! Now what? 18K views · 1 year ago ...more. Granger Smith. 762K. Subscribe. 1.2K. Share. Save. The Duramax engine has a history that runs deep. It has the following still to this day and continues to up expectations in terms of power and everything else. While it's history stretches back to 1982, we are going discuss the more modern years. The 6.6L was introduced in 2001 and replaced the 6.5L and the company hasn't looked back since. GMC/Chevy Duramax Diesel Tuners and Programmers. Show 12 24 36 48. Home Duramax. We carry diesel tuners for all Duramax truck models, including LB7, LLY, LBZ, LMM, LML/LGH, and L5P. We have a diesel programmer for all years of Duramax (2001 - 2020) Save. $80.After a number of years, GM aimed to make smaller Duramax diesel engines for its vehicles, which began with inline-four engines in displacements of 2.5L and 2.8L, though they discontinued these ...Jun 3, 2019 · 2001 was a huge year for GM lovers across the United States. Not only was 2001 the start of the Duramax engine, but also the famous Allison 1000 Transmission. This first Duramax engine mated with GM trucks was coined the LB7 Duramax. GMC/Chevy Duramax Diesel Tuners and Programmers. Show 12 24 36 48. Home Duramax. We carry diesel tuners for all Duramax truck models, including LB7, LLY, LBZ, LMM, LML/LGH, and L5P. We have a diesel programmer for all years of Duramax (2001 - 2020) Save. $80.A gap year. A gap year. A gap year. Why do we call it a gap year? A gap in between what....exactly? Is it just a gap of time? A... Edit Your Post Published by Get Grounded on Augus...Jan 25, 2014 ... 5 tunes, Stock, Heavy Tow, Light Tow, Performance Economy, and Race. Stock HP, 60,80,100, and 130. The truck runs much smoother with the tunes ...The safest Duramax model years you can buy are the models produced from 2011 to 2021. These include the Duramax LGH, Duramax LML, Duramax XLD25, Duramax XLD28, Duramax LWN, Duramax L5P, and Duramax LM2. These engines go a step further to provide better emissions thanks to a diesel exhaust fluid/urea injection feature.The GM Duramax 3.0L I-6 LM2 is a turbo-diesel engine produced by General Motors for use in various vehicles, primarily full-size half-ton pickup trucks and full-size SUVs. ... 2019 model year ...Those are priced pretty high, though, in my opinion, for a 14 year old truck. All depends on what you're willing/ capable of spending. Having had 3 duramaxes, LLY, LMM and now, L5P, I can honestly say that the l5p is definitely the superior of the 3. 2018 GMC l5p ccsb stone blue metallic. Mcgaughy's 2" drop shackles.The Duramax years to avoid are LB7 from 2001 to 2004, LLY from 2004 to 2006, LBZ from 2005 to 2006, LMM from 2007 to 2010, and the LML from 2011 to 2016. These are the …Duramax Engines Through the Ages. Several Duramax engines were produced throughout the years to comply with ever-shifting EPA emissions standards. First up is the LB7, which first saw the light of day in 2001. Duramax LB7. Source: Truck Trend. The LB7 was the first Duramax engine and was made from 2001–2004.A charge-off on your credit report means the original creditor has given up on trying to collect the debt and is going to write it off as a loss. However, that does not mean you ar... The name Duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves. 2006-2007 LBZ has the problems from previous generations fixed, and now the weak link is pistons. These also have 6 speed transmissions instead of the 5 speeds. 2007.5-2010 LMM has the DPF system but is otherwise the same as the 2006-2007 LBZ. 2011-2016 LML has DPF and DEF. Changed the injection pump from a CP3 to a CP4.Fuel System Problems. Your Duramax relies on a clean and unobstructed fuel supply. Issues with the fuel filter, fuel line, or fuel injectors can cause reduced engine power. A faulty injector can disrupt the fuel mixture, and clogged fuel filters restrict fuel flow, both potentially leading to limp mode activation for protection.GM 6.6L L5P V-8 Duramax Turbo Diesel Engine Vehicle Applications; Model Year Vehicle Transmission Power (hp / kW) @ RPM Torque (lb-ft / Nm) @ RPM; 2017 – 2023DMAX Ltd. Turns Out Number 2 Million. At the time of its release for ’17 model year Chevy Silverado and GMC Sierra HDs, the L5P Duramax belted out a class-leading 445hp, along with an impressive 910 lb-ft of torque at just 1,600 rpm. As a result, an unladen ¾-ton crew cab 4x4 could sprint from 0 to 60 mph in just over six seconds—not bad ... The Duramax engine has a history that runs deep. It has the following still to this day and continues to up expectations in terms of power and everything else. While it's history stretches back to 1982, we are going discuss the more modern years. The 6.6L was introduced in 2001 and replaced the 6.5L and the company hasn't looked back since. The Silverado 1500 Duramax even achieves better fuel economy than its little brother, the 2.8L Duramax I-4-powered Colorado (20/30 for two-wheel drive and 19/28 for the 4x4).Oct 10, 2020 ... On this episode of DGsTV, Dustin talks about this Duramax L5P we had in with some issues ... DG'sTV - Duramax L5P Issues. 73K views · 3 years agoWhen we're young, it's hard to even imagine ourselves in our "golden" years, perhaps needing help with everyday activities. But the fact is, Americans are living longer now; and th...As a result, a number of much-awaited models at the time featured the 6.6-liter LBZ Duramax, including the Chevrolet Kodiak, GMC TopKick, GMC Sierra, and the. Chevrolet Silverado, which has ...Whether you’re after horsepower and torque, fuel economy, ride comfort or reliability, the Duramax-equipped rigs coming out of Detroit over the past decade and a half are tough to beat. What Others Are …Depending on the year and model, the Duramax engine can produce anywhere from 235 to 445 horsepower and 500 to 910 lb-ft of torque. The benefits of the Duramax engine are numerous. It is known …The 6.6L Duramax V-8 was discontinued for the vans' 2017 model year, and GM promises it will replace the big diesel with a version of the 2.8L Duramax I-4 soon. See All 21 Photos AdvertisementThe name Duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves.If you’re looking for an engine that won’t trouble you much, we recommend the following Duramax year models: 2010 – 2017 Duramax LGH; 2011 – 2016 Duramax …The good news is that if you’re searching in that model year range of 2006-2011, the only time you’ll run into a vehicle with a CP4.2 would specifically be a 2011 Chevrolet/GMC Duramax or 2011 Powerstroke, as that was the first year of the LML and 6.7 Powerstroke engines.1. 2005 Duramax. The 2005 Duramax is one of the worst engines of the entire series. The thing that makes it fail the most is that it has a head gasket problem, which means that the head gasket fails and causes an excess of oil in the coolant. This can cause overheating problems, which will lead to more failures.The years to avoid Duramax engines are 2001, 2002, and 2004 due to injector and turbocharger problems. These years have shown higher rates of engine failures and costly repairs. Duramax engines are known for …2006-2007 LBZ has the problems from previous generations fixed, and now the weak link is pistons. These also have 6 speed transmissions instead of the 5 speeds. 2007.5-2010 LMM has the DPF system but is otherwise the same as the 2006-2007 LBZ. 2011-2016 LML has DPF and DEF. Changed the injection pump from a CP3 to a CP4.Nov 29, 2018 · The RHG6 model turbocharger aboard the LB7 marked the only time a fixed geometry unit was used on a Duramax. Manufactured by IHI Turbo America, the RHG6 sported a 60.6mm (inducer) compressor wheel and a 68mm (exducer) turbine wheel, along with a wastegate. In factory form, the IHI charger sees a maximum peak boost of 22 to 24 psi. At the low end of the market, the Cateye is likely to cost at least $10,000. Going for later model years or higher trims will get you closer to $15,000. If you opt for the Duramax version, plus a later model year and a higher trim, you could easily be paying at least $25,000. Aftermarket SupportJan 25, 2014 ... 5 tunes, Stock, Heavy Tow, Light Tow, Performance Economy, and Race. Stock HP, 60,80,100, and 130. The truck runs much smoother with the tunes ...The Duramax engine has a history that runs deep. It has the following still to this day and continues to up expectations in terms of power and everything else. While it's history stretches back to 1982, we are going discuss the more modern years. The 6.6L was introduced in 2001 and replaced the 6.5L and the company hasn't looked back since.The best years for the Duramax are 2006 and 2007. These engines are both highly reliable and capable of a fantastic output. The only commonly stated problem with the 2006-2007 Duramax is that the pistons tend to crack when the engine runs higher than 600 horsepower.6.6L LBZ Performance & Tuning Potential. In addition to coming out of the factory with more power than the 6.0L Powerstroke and the 5.9L Cummins, the 6.6L LBZ Duramax was one of the most tuneable as well. While the pistons are a concerning issue on these engines, you shouldn’t run into any issues until you’re trying to push serious power.
The final Duramax years to avoid are those made between 2007 and 2010, the LMM. Low fuel rail pressure, the EGR valve, pistons, and the crankshaft are still a problem. Add to these the problems with the diesel particulate filter, and you know all the problems with the LMM. What Year Duramax to Avoid. Costco waipio gas price
Duramax Years with Known Issues. 2001-2004 LB7 Duramax Engine. The LB7 Duramax engine, manufactured from 2001 to 2004, is known for its fair share of problems that owners may encounter. One of the most with this engine is injector failure. Over time, the fuel injectors can develop internal cracks, leading to fuel leaks and poor …The Duramax block and heads are supplied from reliable vendors of General Motors. [vague] This engine was initially installed in 2001 Chevrolet and GMC trucks, and has …Duramax History, Lesson 5: LML. In order to meet ever-increasing emission standards and keep up with the Joneses (at the time, Ford’s upcoming 6.7L Power Stroke), GM amended the Duramax once more for the 2011 model year. The fifth generation common-rail V8 was given the RPO code LML. While it was nothing like a full redesign—it still ...The exact MPG any engine gets depends on the vehicle it’s used in, but the 6.6-liter Duramax diesel engine gets an EPA-estimated 15 MPGs in city driving and 20 MPGs on highway driv...With this system, you can increase your vehicle’s fuel economy by adjusting the exhaust after treatments. The best Duramax diesel engine year models that are safe to buy include: 2010 – 2017 Duramax LGH. 2011 – 2016 Duramax LML. 2011 – present Duramax XLD25. 2012 – present Duramax XLD28. 2014 – present Duramax LWN.Jul 6, 2021 · LB7: 2001 – 2004. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. In general, it’s a very durable and reliable engine. However, as the first models hit the 100,000-mile mark, some issues cropped up. Injector failure was a common problem on the LB7 engines. Jan 14, 2016 ... first part of 06 could be lly. Here's a vin decoder for you. Model Year(s) 8th Digit of VIN Duramax Model & Notes 2001 – 2004 1 LB7 2 LLY ...The name Duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves. The L5P Duramax is the latest version of the Duramax V8 diesel engine. (engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm. Design specification performance can exceed 550 bhp (410 kW) at 3,050 rpm and 1,050 lb⋅ ... 6.6L LBZ Performance & Tuning Potential. In addition to coming out of the factory with more power than the 6.0L Powerstroke and the 5.9L Cummins, the 6.6L LBZ Duramax was one of the most tuneable as well. While the pistons are a concerning issue on these engines, you shouldn’t run into any issues until you’re trying to push serious power.As previously stated, the first model year of Duramax was 2001 with the LB7 engine code. This model featured a 3.5″ exhaust system with a catalytic converter and a muffler. This basic system was utilized all the way through 2007 model years ending with the LBZ engine code. The factory exhaust is relatively adequate for engines producing …6.6L LBZ Performance & Tuning Potential. In addition to coming out of the factory with more power than the 6.0L Powerstroke and the 5.9L Cummins, the 6.6L LBZ Duramax was one of the most tuneable as well. While the pistons are a concerning issue on these engines, you shouldn’t run into any issues until you’re trying to push serious power.The safest Duramax model years you can buy are the models produced from 2011 to 2021. These include the Duramax LGH, Duramax LML, Duramax XLD25, Duramax XLD28, Duramax LWN, Duramax L5P, and Duramax LM2. These engines go a step further to provide better emissions thanks to a diesel exhaust fluid/urea injection feature.rynburns. • 8 yr. ago. The LBZ is the best Duramax chevy ever built. Non invasive emissions equipment, easier to work on (for the most part) and easily an acceptable ammount of power. I would only change a couple things if I had one; the stupid fan shroud thing that bolts to the heads/block would go for sure, it makes life a pain in the ass ...36 posts · Joined 2010. #4 · Jul 11, 2017. I currently have 9K miles on my L5P. I drive 70miles round trip to work, non-highway, with hills through towns. I had set the trip odometer the day I bought it and it's averaging almost 17, including some mild camper towing. Tank to tank I'm seeing better than 18 with regens..