According to Prosource Diesel, anything over 350,000-miles is considered high mileage for a used diesel pickup with a Cummins or Duramax engine under its hood. Anything over 350,000-miles is also regarded as high mileage for a Powerstroke diesel engine.
In respect to this, Is 5.9 or 6.7 Cummins better?
The 5.9 Cummins offers a fixed geometry turbo, which differs from the 6.7 Cummins variable geometry. … To sum up, the more simplistic 5.9 fixed geometry turbo means that while it tends to be more reliable, the more advanced 6.7 variable geometry turbo gives better performance.
Furthermore, Is it OK to buy a diesel truck with high mileage?
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.
Additionally, Do diesels need to be driven hard?
Driving an old diesel hard may well have shifted any soot build up but to clear any build up in the DPF a regeneration is required, it simply cannot be blown out even though some maintain it can, its an urban myth. Regens take place when required and are controlled by the ECU, you cannot force one yourself.
Are Short Trips bad for diesel engines? Short trips do not let the diesel engine get warmed up well enough to remove deposits and keep carbon from accumulating and being burnt off. That’s all really. You need at least 15-20 minutes of loaded running to get it to temp and say about 1 hour straight a month of highway driving minimum to keep it all happy.
16 Related Questions Answers Found
Is the Dodge 5.9 Diesel a good engine?
If you don’t consider the fuel system, the 5.9 Cummins is a very reliable engine. The internal parts like the pistons, rods, and crank will last for a zillion miles even with some abuse. … If you don’t consider the fuel system, the 5.9 Cummins is a very reliable engine.
How much HP can a 6.7 Cummins handle?
When pushed to its absolute limit, the OEM fuel system on the 6.7L Cummins (lift pump, CP3, injectors) can support as much as 530rwhp and roughly 550rwhp with a turbo upgrade.
How many miles will a Cummins 6.7 last?
Ram claims the Cummins 6.7 engine to be good for 350,000 miles. The mileage is guaranteed if the scheduled services has been carried out timeously and no performance modifications have been done to the engine.
What is wrong with EcoDiesel?
On the 3.0 EcoDiesel the EGR cooler is prone to cracking. Fortunately, in October of 2019, FCA issued a recall for 108,000 EcoDiesel Ram’s due to cracking EGR coolers. FCA claimed that hairline cracks in the EGR cooler could cause coolant to leak into the engine bay and cause fires.
Is it bad to only drive a diesel truck short distances?
Short runs are not good on any internal combustion engine. As stated earlier it’s best if they come up to operating temperature before being shut off again.
What is 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.
Is it OK to rev a diesel engine?
You should therefore allow your engine to rev to the redline at least once every few hundred miles – but only when the oil is warm and you’re on a quiet road. Diesel cars may also have problems with clogged diesel particulate filters (DPFs), which are designed to trap harmful exhaust emissions.
Should you let a diesel warm up?
You should let your engine idle for a few minutes to warm up before getting underway. As noted above, a diesel will not warm to operating temperature until it is under load. Thus you need only let the engine idle long enough to fully circulate the oil—30 seconds is plenty.
Is it bad to use a diesel as a daily driver?
With less to go wrong, diesel engines are often more reliable than gasoline engines, coming with a longer life expectancy and requiring less maintenance cost. … While these engines carry a stereotype of “heavy-duty,” diesel-powered vehicles are also suitable for commuters and everyday drivers.
Should I let my diesel cool down?
Dan explained that three to five minutes is usually sufficient for cooling down a diesel engine. He also said it isn’t necessary when just running about town without the trailer. But after long hauls you may want to idle the engine for up to seven minutes to allow the manifold to cool down.
Is it good to rev a diesel?
You should therefore allow your engine to rev to the redline at least once every few hundred miles – but only when the oil is warm and you’re on a quiet road. Diesel cars may also have problems with clogged diesel particulate filters (DPFs), which are designed to trap harmful exhaust emissions.
How do I know if my 5.9 Cummins has bad injectors?
A few signs that your injector is going bad include:
- Poor engine performance or misfires.
- A check engine light comes on.
- Hard starting or poor idle – especially after the vehicle has been sitting overnight.
- Black smoke from tailpipes.
- Foul odor from tailpipes.
- You notice a decrease in fuel efficiency.
Are all 5.9 Cummins blocks the same?
From ’94-’97, all 5.9L Cummins engines shared the same cast-iron block, crankshaft, main cap bolts and cylinder head found on the ’89-’93 mills. … 14mm bolts on ’89-’97 engines), all late model 12-valves were equipped with the smaller diameter fasteners.
Is a 12 or 24 valve Cummins better?
While the 12-valve is a little bit more reliably with the mechanical P7100 pump, tuning it requires modified parts of the injection pump. The 24-valve might not be as insanely reliable, but it’s still very reliable and can easily be tuned with a handheld tuner.
How much boost does a 6.7 Cummins make?
Under full throttle the Ford 6.7 would make about 30psi of boost.
Which is better 68RFE or Aisin?
The 68RFE is not nearly as robust as the Aisin in any way, shape, or form. They are two totally different transmissions. … The difference is the Aisin has a much deeper First (3.75:1) and Second (2.0:1) to maximize the 6.7L’s torque delivery for more low-end pulling power.
How much HP can a Cummins handle?
The 5.9L inline-six mill’s factory rotating assembly from ’89 to ’02 is capable of handling 800 hp (1,400 to 1,600 lb-ft of torque) without breaking a sweat, and is often pushed into four-digit territory before aftermarket rods become a consideration.
How many miles per gallon does a Dodge 3500 diesel get?
2020 Ram 3500 – Fuel Economy Ratings
| Model | 2020 Ram 3500 | 2020 Ram 3500 |
|---|---|---|
| Transmission | 8-Speed Shiftable Automatic | 8-Speed Shiftable Automatic |
| Drivetrain | Rear-Wheel Drive | Four-Wheel Drive |
| City Fuel Economy | 11 MPG | 11 MPG |
| Highway Fuel Economy | 19 MPG | 18 MPG |
Is deleting a 6.7 Cummins worth it?
To put it bluntly, no, you should not remove the emissions equipment from any diesel pickup. Removing emissions equipment also voids the vehicle’s factory warranty. …
How many miles is too many on a Dodge Cummins?
Dodge states that the Cummins is good for 350,000 miles before major overhaul. Chevy and Ford say 250,000 miles for their diesels.
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