- Why do diesels knock?
- Is buying a used diesel truck a good idea?
- Is it bad to rev a diesel engine?
- What is the disadvantage of diesel engine?
- What is considered high mileage for a diesel truck?
- Is it bad to let a diesel truck idle?
- What used trucks to avoid?
- Is 100k high mileage for a diesel?
- What is the best used diesel truck?
- Is it worth it to get a diesel truck?
- Do diesels need to be driven hard?
- What is the most reliable diesel truck?
- Is Duramax better than Cummins?
- Are diesels OK for short journeys?
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..
Is buying a used diesel truck a good idea?
You’ll save money over buying any other make or model built in this era and also end up with a used 6.0L that’s pretty darn reliable. Most people run away from these things, but if you’re big on regular maintenance and an above-average wrencher, you can keep one on the road indefinitely.
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.
What is the disadvantage of diesel engine?
The major disadvantage associated with a diesel powered vehicle is the upfront cost. While it’s true that diesel engines do get better MPG than gas powered engines, this is offset because diesel cars are more expensive than their gasoline powered counterparts.
What is considered high mileage for a diesel truck?
Generally speaking, diesel trucks are sold with higher mileage than the typical used vehicle. It is not uncommon to see a used diesel truck for sale with over 200,000 miles on it. Granted, diesel engines typically have better reliability than a gasoline equivalent, but high mileage remains a concern.
Is it bad to let a diesel truck idle?
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.
What used trucks to avoid?
10 Used Pickup Trucks You Should Avoid At All CostChevrolet Colorado. Just because the Chevy Colorado is one of the smaller ones on this list doesn’t mean that the problems you’ll deal with will also be smaller. … Ford F-150 and F-250. This one might surprise you. … Toyota Tundra. … Nissan Frontier. … Dodge Ram 1500 and 3500. … Chevrolet Silverado 1500. … Honda Ridgeline. … GMC Canyon.More items…•
Is 100k high mileage for a diesel?
Diesel Rule 1: NEVER buy high mileage To be clear – avoid diesel cars with over 100,000 miles on the clock. Just avoid them.
What is the best used diesel truck?
Best Diesel Trucks You Can Buy2006 and 2007 Chevy and GMC 2500 and 3500. … 2003-2004 Dodge Ram Heavy Duty. … 2008-2010 Ford F-250/F-350. … 2014 Ram 1500. … 2012 Chevy Silverado HD. … 1991-1/2 to 1993 Dodge Cummins. … 1999-1/2 to 2000 Ford Super Duty. … 2010 Dodge Ran 2500HD.
Is it worth it to get a diesel truck?
If you own a truck or SUV, the difference in gas mileage is usually lower but still about 20 percent higher than a gasoline-powered truck or SUV. It is worth noting, however, that diesel fuel is more expensive than gasoline. … Even with the increased cost of diesel, you can expect to pay less in fuel costs each year.
Do diesels need to be driven hard?
Driving a diesel engine hard will produce less soot per kWh of useful work. … Driving a diesel hard will also use more fuel. Use the torque which is what a diesel is about and let the DPF sort itself out as necessary, it works for most people like that.
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 Duramax better than Cummins?
About Duramax Engines Duramax engines can be found in Chevrolet and GMC vehicles, such as the Chevy Silverado and GMC Sierra. Their high horsepower and torque outputs directly compete with Cummins engines, as well as PowerStroke. In addition to durability, Duramax engines are known for their quiet performance.
Are diesels OK for short journeys?
If you cover a high mileage and the bulk of your driving’s on motorways, then a new diesel (with a DPF) is still a good option. If your driving is predominantly short journeys on local roads, then petrol will be more suitable than a diesel because Diesel Particulate Filters don’t like short journeys.