Well. not as such. (though struggling to find 20/50 locally for my 2001 GS) 80,000 miles.
But on some of the oil threads there's mention of using semi or fully synthetic oil after a certain mileage.
I know next to nothing about the technical aspects of oil, so was wondering why it would be after a certain mileage that this is "ok"
Is there any benefit to semi or semi synthetic in these engines?
Also, if you pop a 15/40 oil in say, instead of a 20/50, are they actually noticeably noisier as some say, or is it just a placebo type effect ?
I like a quiet engine .....
But on some of the oil threads there's mention of using semi or fully synthetic oil after a certain mileage.
I know next to nothing about the technical aspects of oil, so was wondering why it would be after a certain mileage that this is "ok"
Is there any benefit to semi or semi synthetic in these engines?
Also, if you pop a 15/40 oil in say, instead of a 20/50, are they actually noticeably noisier as some say, or is it just a placebo type effect ?
I like a quiet engine .....