Quick Answer: How Many Miles Does A Duramax Engine Last?

What year Duramax gets best fuel mileage?

Seems like some wide variances in MPGs from the Duramax/Allison power plant in 4×4 Chevy/GMC crew cabs.

As far as I can tell the best years for mileage are 2001-2004 or so..

How much horsepower can you get out of a 6.6 Duramax?

Duramax Timeline Since then, the Duramax has undergone a variety of changes, modifications, and enhancements, all necessary in the progression and evolution of the engine. Today, the Duramax makes nearly 400 horsepower and over 750 lb-ft of torque while reducing emissions considerably over previous generations.

What is considered high mileage for a Duramax?

The truth is, there is no single mileage that is considered to be “too high”. Some Duramax owners claim that 100,000 miles marks a heavily-used engine, while others refuse to consider anything below 350,000 miles to be high mileage.

Is it bad to leave a diesel engine running?

In any case, letting your diesel idle for anything more than a short duration is a bad idea because while the engine will use little fuel, what fuel it does burn will not combust completely because the operating temperature is too low. … The best rule is, if you’re not underway, turn off the engines.

Is it bad to rev a diesel engine?

Poppycock. An idling diesel circulates more than enough lube to keep everything well oiled, and revving the engine then shutting if off can leave unburned fuel in the combustion chambers and even starve the turbocharger bearing, because the turbo will keep spinning after the oil supply dies.

Are diesel trucks worth it?

They are more expensive up front, but depending on the truck and your needs, it might be worth the money to make the upgrade. Make sure to also research local fuel prices and the higher maintenance costs associated with modern diesel engines before making a decision.

What is the best used diesel truck to buy?

2020 Ram 3500 Heavy Duty – First 1,000 lb-ft Diesel Ram’s 2020 Heavy Duty ranks as an all-time-best diesel pickup truck, mainly because its 400hp High Output 6.7L I-6 Cummins is the first diesel powerplant (for general-use rigs) to reach the four-digit torque mark (1,000 lb-ft).

Why is idling bad for a diesel engine?

Unnecessary idling wastes fuel, causes air pollution and increases engine wear. An idling diesel engine produces much higher emissions than it would while using the same amount of fuel under load. Extended idling causes a build-up of soot inside the engine and results in a puff of black smoke when the engine revs.

What is the average life of a diesel engine?

30 yearsProperly maintained, most mechanics agree you can expect to keep a diesel vehicle on the road for a solid 30 years. They do, however, require some special care. For example, you can’t expect a diesel to sit all day in sub-zero temperatures and start easily.

Why do diesels knock?

Knocking is more or less unavoidable in diesel engines, where fuel is injected into highly compressed air towards the end of the compression stroke. … This sudden increase in pressure and temperature causes the distinctive diesel ‘knock’ or ‘clatter’, some of which must be allowed for in the engine design.

What is considered high mileage on a diesel engine?

Heavy-Duty Diesel Vehicles Heavy-duty diesel engines are categorized differently when discussing high mileage. An over-the-road class-8 truck will log 750,000 miles or more before it is considered “high mileage.” It’s not unusual for a truck to achieve more than 1,000,000 miles if it is serviced regularly.

How much does it cost to replace injectors in a Duramax?

The total cost to have a mechanic replace 8 injectors on an LLY Duramax can range from $3500 – $4500 CAD, depending on what other work is performed at the same time.

What is the most reliable diesel truck?

Ford Super DutyThe 2018 Ford Super Duty can be considered one of the most reliable diesel pickups on the market. It has a 6.7 liter Power Stroke Turbodiesel V8 engine that delivers 840 horsepower with a towing capacity up to 34,000 pounds.

Is it worth buying a high mileage diesel truck?

Generally speaking, diesel trucks are sold with higher mileage than the typical used vehicle. … Even if the truck turns out to have strong reliability, buyers need to be comfortable with the idea of spending their hard-earned money on a vehicle that has seen that much use.

Why is the LBZ Duramax so good?

Duramax History, Lesson 3: LBZ. … This engine’s beefier block casting, stronger connecting rods, higher pressure common-rail fuel system and updated ECM arguably made it the most powerful, drivable, reliable and tunable Duramax to date. Right out of the box, the LBZ produced 360hp and 650 lb-ft of torque.

Should I buy a diesel truck if I don’t tow?

You don’t have to tow with it to properly maintain it but it does need to work some, get it good and hot. If you plan on taking trips, driving for a couple hours or more than it will be fine. Diesels are made to run all day long, hours on end. Maintance is key so you will have to step it up a bit on that end of things.

Is the 6.6 Duramax a good engine?

The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. … However, like any engine (or any complex mechanism for that matter), the Duramax engine and Allison 1000 transmission have some common problems inherent to their design.

What year of Duramax engine is the best?

2006-2007 2500 & 3500 With arguably the best plug-and-play horsepower potential (on top of 360 horsepower being offered right out of the box), the last of the (essentially*) emissions-free engines, and a stronger, six-speed Allison to back them, the LBZ Duramax has a lot going for it.

Is 100 000 miles on a diesel bad?

Diesel Rule 1: NEVER buy high mileage To be clear – avoid diesel cars with over 100,000 miles on the clock. Just avoid them. Really. They will cost you money, time and hassle.

Is it bad to let a diesel truck idle?

Most engine manufacturers recommend that newer diesel engines idle for no more than 3 minutes before driving. … Letting an engine idle actually does more damage to the engine than starting and stopping. Running an engine at idle causes twice the wear on internal parts com- pared to driving at highway speeds.

What is the fuel mileage for a 6.6 Duramax diesel?

The 33 mpg highway figure should come with an asterisk though, since that’s for two-wheel-drive pickups. Buyers who opt for four-wheel-drive models will manage figures of 29 mpg highway and 23 mpg city. Right now, that makes the 2020 Silverado the most fuel-efficient full-size diesel pickup on the market.