Other than spark plugs, belts, oil changes and other such consumables I don't remember having to do any engine maintenance on my cars for the last 10 years. Of

Other than spark plugs, belts, oil changes and other such consumables I don't remember having to do any engine maintenance on my cars for the last 10 years. Of course, it helps that I am buyer of boring Toyotas and Hondas. But all those costs are correlated with engine hours, in a hybrid used most of the time for commuting, ICE engine hours would be really low