엔진오일 교환 수리 사례

2026. 7. 14. 작업

난이도 & 준비물

증상

Our landscaping company is going to purchase a new medium duty truck. We have diesels and had just defaulted into looking for another diesel powered truck. However the mechanic we use (and trust) said that we should consider gas engines for a number of reasons: Initial cost for gas engine is lower Mileage is similar/diesel oil is more expensive than gas Gas engines more suited for the short-trip (2 - 10 mile) type driving we do. We might put 15k per year on a vehicle, but typically quite a bit less. Long term maintenance on gas engines is cheaper We can evaluate the first three claims ourselve

처리 내용

Diesel engines can these days have for example these kinds of problems: The turbocharger can break. Gas engines due to the high RPM they are capable of running at don't need turbos, but a turbocharger is practically mandatory in a diesel engine to obtain any useful amount of power. Direct injectors can fail. Replacing them is extremely expensive. I once read an article about the repair business of these injectors. Many countries have special facilities with cleanrooms to repair these injectors, because repairing, although expensive, is less expensive than replacing. The particulate filter can fail. It is a very expensive component to replace. The exhaust gas recirculation system that is mandatory to combat NOx can clog the intake valves. In (non-direct-injected) gasoline engines, the injection of gasoline into the valves will naturally keep the valves clean, whereas in a diesel engine there is no such mechanism. So, it's not the regular maintenance that will cost more, it's the extreme