The oil lubes the engine and the clutch as they are wet clutches. Using a synthetic oil can cause clutch slippage unless you go with stiffer clutch springs.

 

The only problem with synthetic oils are they will cause slipping if you don't buy one designed for wet clutches. Most of the big boys run synthetic becasue they are slicker and they won't degrade in extreme temps like a normal oil will.

You guys need to find a new dealer!!! I only pay $8 a quart and about $9 a filter from my dealer. Tell them guys to go fly a kite.

Justin

 

Shell Rotella T synthetic does not have the friction modifiers in it that cause slipping. It is $12.88 a gallon at Wal-Mart. You want to find a oil, synthetic or dino that does not have the "EC" (energy conserving) rating on it; to avoid the friction modifiers. Many Rincon riders and others are using this oil without problem and the price is right for the benefits of a synthetic oil.

Use whatever you are comfortable with and as long as you change it as you should, you will be fine.

 

my dealer charges 10.25 for the filter (aren't K&N's less?) & 6.75 a quart for Klotz techniplate 10w-40 synthetic. works great.

 

Excellent info guys...thanks for the help!!!

 

the guy at the dealer here in portland oregon told me that if my bike was still uder warrenty as it is,..i HAVE to use bomb. oil...if not and something goes wrong,..they do an oil anallisis and wont cover parts in the warenty,...is this true?..

 

No, by law they cannot specify which oil should be used. I do use the stock oil so as to avoid problems. Oil analysis (LOL), I would like to see them do that!!

 

was it sk northwest that told you that? they told me the same thing.

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Oil Analysis is easily done, and tells you alot of info.

 

they are pretty common. we them every 3 to 4 months on over 700 vehichles. engines,planetarys and diffs.