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flyin 5.8 · 01-23-2005, 06:50 PM

Changing to a synthetic can't "cause" leaks but, they can appear after the change. The better cleaners in the synthetics will clean the sludge from the inside of an engine revealing very small cracks in gaskets & seals. The smaller molecules of the synthetics also fit through these small cracks much easier.

I'm not a scientist but, this is the only explanation I've found for why some engins leak after the change and others are fine.

01-23-2005, 06:50 PM	#10
flyin 5.8 Registered Member Join Date: Apr 2002 Location: Holland, Michigan Posts: 73	Re: synthetic oil in an old motor? Changing to a synthetic can't "cause" leaks but, they can appear after the change. The better cleaners in the synthetics will clean the sludge from the inside of an engine revealing very small cracks in gaskets & seals. The smaller molecules of the synthetics also fit through these small cracks much easier. I'm not a scientist but, this is the only explanation I've found for why some engins leak after the change and others are fine. __________________ If girls are made of sugar and spice, how come they taste like tuna? "Nitrous is like a hot chick with an STD . . . you want to hit it, but your afraid of the consequences."