Quote:
Originally Posted by 185EZ
You don't change your filter for 9000 miles?
Not looking at exact prices but your synthetic is about 3 times more expensive than conventional oil. There is no monetary savings there, just labor if you take it somewhere else.
I would rather change my oil and know that it's fresh and clean than wait for 9000 miles and realize I had a problem with some sort of internal problem. Case and point, my Mercury racing motor recommends 20 hour oil changes. If i would have waited 3 times as long, I wouldn't have seen the filings from the internal valve spring that broke and would have been screwed. Synthetic oil played no part in that failure, purely mechanical defect.
Performance advantage? Probably, but I would like to see proof that someone's motor is running 10* cooler just by switching. Too many variables for the average rider to make that claim.
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Then, speaking in general, would you recommend changing the conventional oil more often than waiting longer, in miles or time?
I apply the question to my bike, that sits a long time and doesn’t get that many miles a year.
