Cummins is the brand of engine found in the Dodge diesel and Ram diesel truck lines. Like the Duramax, Cummins diesel engines can be expected to last a long time. Between , and , miles is usually considered high mileage on a Cummins diesel.
Of course, it again depends on how well-maintained the engine is. The Powerstroke engine is found in Ford trucks and, like the Duramax and Cummins engines, can often last up to , miles. However, as with the Duramax and Cummins engines, between , and , miles is usually considered high mileage for a Powerstroke engine. Maintenance of the truck and the engine is the key to getting the most miles.
Buying a diesel pickup truck with , miles or more might be a great deal. Brand new diesel pickups tend to have higher price tags than their gas brethren, so buying used often makes a lot of financial sense. Consider the following when buying a used diesel pickup:. Small leaks around gaskets and seals are not uncommon. On the other hand, oil more heavily coating the area around a seal or gasket might raise a bit more suspicion. It depends on how much oil is covering that area.
Long-term operation of one of these older diesel engines without additional lubrication can cause early injection pump failure. But a fuel additive can help modern diesel engines as well. As with any vehicle, different trucks and different engines have different problems. This is where maintenance records can be invaluable. For example, it might be relatively common for the water pump in a certain truck to fail every , miles or so. Synthetic oil offers the following benefits:.
The third key to diesel longevity is operating efficiency. Diesel engines run at lower revolutions per minute RPMs and achieve higher levels of torque relative to a gas engine. Being able to operate at lower revolutions to achieve the same power means less wear on your pistons, rings, cylinder walls, bearings, valves, and guides which aids in lengthening the life of your engine.
Diesel engines are typically left running when not in operation for short periods in time. Since a large percentage of wear occurs at startup, the constant cycling of turning the engine on and off saves in wear over that of a gasoline engine. It also reduces the heat cycles and keeps operating temperatures constant. They are not subjected to quick starts and stops. Starting the engine is one of the most abrasive acts on the motor. While idling your motor is not ideal for its longevity, that is what most of these trucks are going through.
Being started at the beginning of the day and turned off at the end, they run long hours and are worked very hard, but that is their purpose. The blocks are bigger, the walls are thicker, and the pistons are larger, for example. And with the added bulk even, let alone the precision in tolerances in the rings to prevent blow-by, the design originates with lubrication in mind, aiding in the reduction of friction and damage to the rubbing parts. This is partly because of the intricate fuel pump which is expensive to repair or replace.
Diesel power is excellent technology, but it offers both pros and cons. One of the biggest benefits, of course, is gas mileage, but diesel also offers other advantages. For instance, diesel -powered trucks and SUVs offer better towing capabilities than their gas-powered counterparts. Diesel maintenance is cheaper overall, since diesel engines have fewer problems than gas engines; but diesels are more expensive when they need repairs.
Diesel maintenance generally will not cost you more than for a gasoline powered version, depending upon the type of diesel car that you have. Diesel engines get better fuel economy simply because they do not need to burn as much fuel as a gas engine to get the same power. Diesel engines are also built heavier than a gas engine to sustain the added stress of the higher compression ratio. Overall: Yes, the Jetta TDI is not the most reliable car and it will have some problems, but it handles well and the highway fuel economy is great.
Ah, the feel of the open road. A person could drive 30, miles a year the average is 15, and rack up miles pretty quickly, but someone who drives very little will still see their car age when the interior fades and rubber parts begin to dry. If a car , diesel or petrol, is left standing for a long time over a month various bad things will eventually happen. The battery may go flat, and if it does, it will need replacement. Diesels are vulnerable to DPF damage caused by lots of short runs and stop start slow traffic.
Diesel in the city — fuel economy Firstly, short journeys. Any engine is very inefficient when it is cold, so the first 15 minutes or so of any journey will not yield very good fuel consumption regardless of the advertised fuel economy of the vehicle.
When buying any car, try to look past the mileage and age to a certain extent and focus on if the car has been maintained well. So no, it's not inherently bad to buy a car just because it has over , miles. Reason being that a car with over k on the odometer will need attention on something sooner, but anything is fixable and even a major repair is still cheaper than buying newer.
So it is advised that drivers regularly give their diesel vehicle a good 30 to 50 minute run at sustained speed on a motorway or A-road to help clear the filter. However, not all drivers do this type of driving regularly — which is why manufacturers have designed an alternative form of regeneration. Need to be driven daily , else maintenance becomes high Modern diesel cars do not need constant attention. You can use it when you need to. Earlier, it was a fact that diesel cars needed to be run more often than petrol vehicles.
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