Quote:
Originally Posted by kkim
why not just try a synthetic and see for yourself? if you don't think it's worth it, change back.
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If the differences are so slight or intangible that they can't be quantified, I will stick with conventional. Like I said, the last two ZX6s I had were running Synthetic (the prior owners had already switched them) and I had heard from a number of people that you shouldn't switch back from Synthetic to Conventional. (I have also read since that it was a myth) I guess that is part of the problem, there are opinions all over the place and it is hard to separate the opinions from the facts. I have heard it can increase mileage, but I never saw any difference in gas mileage between the ZX6s running Conventional vs. Synthetic. That is something that I was able to personally see, but I am not deluding myself by thinking that is proof of anything. I know that it was not at all a scientific study and so the conclusion is suspect. What if the bike I had running conventional oil was just tuned a little better than the one running synthetic? The only scientific study (with actual data) I have been able to find on this was done by consumer reports back in 1996. Here is an excerpt of the detailed study by Consumer Reports.
http://www.xs11.com/xs11-info/xs11-i...july-1996.html That study showed no significant difference in Synthetic vs. Conventional or between any brands of oil. But that was a long time ago and oils have probably (hopefully) changed significantly since then. If anyone can point me to a more recent scientific study, I would appreciate it. But the only studies that I have been able to find are not scientific and are being done by the oil companies peddling the oil. Talk about conflict of interest.