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The ideal answer is about 500,000 [Please bear with me].

Today's cars are computerised and that means that there a lot of "Idiot proof" (SORRY) settings built into them to operate the engine and transmission within reasonable settings. since the fuel is almost exactly metered 14 to 1 ratio ( except during acceleration ) there is little carbon buildup and contamination. About the first Unavoidable failure that occurs in automobile engines is the failure of the Cylinder Head Gasket. Don't think about timing belts and other parts that are on a recommended replacement schedule. If you prevent your car from OVERHEATING it would last you much longer than you think.

There are a lot of cars in the junkyard that are there more as a function of economics considerations than actual failure

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15y ago

What else can I help you with?