Thursday, November 26, 2009

Why Oil Matters


What if I Don't Change My Oil?

If you're reading this article, you're probably not one to skip a few oil changes, but you might be wondering what might happen to your car's engine if you did. In short, it's not pretty.

One of the problems, according to Bachelder, is that there will begin to be build-up in the cooler parts of the engine, like the crankcase and around the camshafts and valves.

'You would get the carbon deposits, the sludge as you would call it, coming out' of the old oil, he said. 'To clean the engine would be relatively expensive because it would require taking parts off.'

'It can get to the point where it's so thick that it can't be pumped,' McDonald said. 'You can start to wear out your piston rings. Once those begin to wear it's not easy and not inexpensive to fix that problem.'

It can get worse. Bachelder says the pistons could eventually seize or the camshafts could be damaged. Getting a bill for either one of these repairs would make even a few high-quality oil changes look like pocket change. Regular oil changes, according to Szemenyei, are like 'really cheap insurance' for your engine

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