Synthetic oil. Can it Really Go 10,000 miles?

[sickpuppy1]

If I were going to run any oil that many miles, I would still want to change the filter at the halfway mark or so. But thats just me. I'd sacrifice the cup of oil it holds for peace of mind. Still trying to figure why my exhaust is rusting from the inside on my 2010 sedan. Use top tier gas, dont idle much at all and my daily drive to work is 48 mile round trip @ 80% highway. where the heck is all the moisture coming from?

[zoidberg444]

Originally Posted by sickpuppy1

If I were going to run any oil that many miles, I would still want to change the filter at the halfway mark or so. But thats just me. I'd sacrifice the cup of oil it holds for peace of mind. Still trying to figure why my exhaust is rusting from the inside on my 2010 sedan. Use top tier gas, dont idle much at all and my daily drive to work is 48 mile round trip @ 80% highway. where the heck is all the moisture coming from?

If i'm not mistaken water vapour is produced by combustion and the catalytic converter. Not to mention there is a certain volume of it in the air and engines consume an enormous amount of it in a year.

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