Has your dealer ever told you.....

H

hit me with a crowbar

New member
to use semi-synthetic oil on your superbike? I guess this actually only pertains to the 848 since it has a wet clutch. Took the bike in for a 7500 mile service and I called before to see what oil they use, they told me semi-synthetic motul, I said ok, I'll bring my own full synthetic. When I brought it in the service writer told me that it isn't recommended because it can cause clutch slippage. He did state "it does say in the book to use full synthetic" but it causes issues. I told him I'll stick with the full synthetic as I have had no issues to date nor heard of others having issues. Just curious if anyone else has been told this? I understand the theory behind it, but seems odd.
 
Wasn't the tech who said it, the service writer did. Either way, I know in past bikes with wet clutch I used semi-syn and I had no issues, but I found full made the bike shift smoother in my opinion.
 
depends on what youre doin tapit, if youre punishing your 848, go the full synthetic, if youre just riding normal like..go semi...but, ......be vigilant on when you change the oil ..(stick to a regular look see whats happening inside my baby program)
(ps..my dealer is here telling me this now whilst he is cookin tha dinner!!!)

hey ps....what happened to the 848>? (in your avatar) did it shrink in the wash???
 
There is no such thing as a fully synthetic engine oil. This is a fact. Google if you do not believe me....

Oils are all crude based with different 'synthetics' added to create the desired load carrying, flow and lubricity properties for the intended application. I do not use synthetic oils at all as IMO and experience they lack adequate percentages of sulphates to give maximum protection in a race stressed engine that is needed to last for any lengthy period of time. So called synthetic oils have been developed in the last decade or so to assist vehicles to comply with increasingly tight emissions levels (the sulphates contaminate emissions so they are replaced with synthetics which are sadly not as good) and are a compromise between the best possible protection and good emissions. For a racing application a high sulphate mineral oil will always provide superior protection, unfortunately such oils are not readily available now. PM Lubricants here in OZ still make high sulphate competition oils. I have compared these against the best of the synthetic offerings in many differnt types of engines and the mineral/sulphate oil is far superior in my experience. especially for applications like flat tappet camshafts and desmodromic rockers. It also is safe to use with wet clutches, unlike some (not all) of the synthetics on the market.
 
Either it shrank or I got really big

I suppose the semi would be fine for most of my riding. I'll consider it next time. I already change the oil every 2-2.5k miles, but then again I haven't tracked it yet and don't push too hard on the street.
 
Welcome DonnaJ.... tell us a little about yourself and what bike you have or are hoping to get. Most of us here are pretty friendly and helpful.
 
he's just pimping his sig line, 3rd site I've seen him on this evening, just jumps into a thread, posts something that makes almost some sense. Haven't clicked the link and not going to.

go the Phisherman
 
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