Diesel Q&A
Focused questions about diesel truck maintenance, towing setups, mileage, engines, and buying decisions.
What should a Texas truck dealer include in an out-the-door quote?
Compare complete written truck prices before discussing monthly payments. Separate the vehicle, government charges, dealer fees, and optional products.
Read answersDoes 100% fuel-filter life prove a used Duramax has a new filter?
A full fuel-filter life display is a reminder setting, not a service receipt. Here is how to verify what happened before you buy a Duramax.
Read answersDoes a 6.7 Cummins fuel-filter service include both filters?
A receipt that says fuel filter is not always detailed enough. Match the Ram model year, filter locations, and part numbers before assuming the job is done.
Read answersWhat should I do if I shut off my diesel during a DPF regeneration?
An interrupted DPF cleaning cycle does not tell the whole story. Check the message, follow the correct manual, and know when driving is not the answer.
Read answersIs a 6.7 Power Stroke a good fit for mostly short trips?
Short errands and weekend towing put different demands on a Super Duty. Here is what to consider before choosing a 6.7 Power Stroke.
Read answersIs the 3.0 Duramax reliable at high mileage?
A high-mileage 3.0 Duramax can be a good buy with records, but check emissions history, service intervals, use pattern, and payload limits.
Read answersIs a half-ton diesel enough for a fifth wheel?
A half-ton diesel may tow small trailers well, but fifth-wheel pin weight often overwhelms payload before tow rating.
Read answersWhat service records should you ask for before buying a diesel truck?
Ask for oil, fuel-filter, coolant, transmission, differential, emissions, fuel-system, tire, brake, and repair records before buying.
Read answersIs a clean Carfax enough before buying a diesel truck?
A clean Carfax helps, but it cannot replace service records, inspection, title checks, rust checks, and a real test drive.
Read answersShould you buy a diesel truck from an auction?
Auction diesel trucks can be cheaper, but missing records, limited inspection, as-is terms, and hidden repairs make the risk higher.
Read answersIs a fleet-owned diesel truck worth buying?
Fleet-owned diesel trucks can be good buys when records are strong, but idle time, heavy use, and wear need careful inspection.
Read answersIs a CP3 conversion a good sign on a used diesel truck?
A CP3 conversion can reduce fuel-system risk, but only when parts, installation, tuning, and documentation are clean.
Read answersShowing page 1 of 4 across 45 published questions.