SOAKING CLUTCH PLATES

[OB_Kirk]

The worst full synthetic is still way better than the best conventional or blend.

 

[OB_WARBIRD]

Thats for darn sure.

 

[rotts4u]

Warbird is right I did some research on mixing of oils for the article. However I dont think it will be published so I will mention my results here. What I did was take all three of the major types of Synthetic oils and mix them with other oils. The three types of synthetics are 1) what I call FULL synthetic oils like Mobil one, Belray, Torco etc fully man made base stock. 2) PAO like Castrol Syntec which is not a fully manmade base. It is a modified petro crude oil that according to the courts in the USA has been modified enough to be called Synthetic. There was a law suit over this and Castrol won. But it does not change the facts that the oil is not the same. I hope I am making my point here. Then 3) PAO Ester like Motul that is made from plant/vegtable material like cooking oils. Which are also VERY heat resistant. Which is why we use those products in deep fryers for cooking with.www.Motul.com for more info on this.

I mixed all three of these oils with various petro oils and semi synthetics then let them stand in a graduated cylinder to look for seperation. In all cases with all combinations I could not detect any seperation. So my conclusion would be that mixing is ok and not likely to cause any problems. There is really nothing magic about any oil that in my opinion would cause any problems with another oil. In fact very few of the oil producers even make their own additives. They buy them from a company like www.lubrizol.com. I suggest you all check out this page it is very informative.

So this means that many of the oils you buy have additives from the same place anyway so no reason they could not be mixed. I personally do not do it on a regular basis but in a pinch I dont see any problem.

don
Rotts4u@aol.com

 

[OB_Johnnycheese]

Thanks for the info Don.
I personally never mix like you except in an emergency.

It was late when I looked at the manual last night Warbird it is SF SG .

Still worth a call to Suzuki.

It would not have been the first time they printed an error.

First year Katana 600s it said to check oil on side stand. That was fun.

 

[OB_BarryW.]

FWIW regarding mixing different oils:

As part of a lubricant's certification (e.g. API SJ) it must undergo a barrage of qualification tests. Some of these tests are conducted with running engines, some in bench testing apparatus, and others in chemical tests. One of the chemical tests is for miscibility - the ability to mix with some reference lubricant (normally a preapproved factory fill oil). Every lubricant that has received certification has passed this test and therefore is compatible with other like oils.

The only real concern is when changing from petroleum base stock to synthetic base stock lubricants if you plan on taking advantage of the increased durability of the synthetic by increasing the time between oil changes. The first time you fill it with synthetic, there is still a fair amount of residual petroleum base oil still present. The petroleum base constituent will degrade if you stretch the time until the next oil change. This is only a concern the first time you add synthetic and the trick is to perform your next oil change at the interval you would for a petroleum base oil. After that the petroleum base component will be gone and you can increase the interval to your next oil change according to the durability of the synthetic oil. Note, however, it's still important to change your oil filter at the interval recommended by the manufacturer, even if you don't change the oil at the same time. I doubt this affects many Busa owners since we're a lot more conscious about vehicle servicing than the average cage owner.

 

[OB_WARBIRD]

Thanks for all the great info guys,its really nice having this kind of research at your fingertips. I went to Suzuki, JC, and you are right, the Suzuki oil is rated SJ. I discussed this conversation with the service manager and he said probably all the motorcycle specific oils meet SJ certification, but the bike oils are non fricton modified. So I guess you can make SJ class in different ways. SJ car oils are a no-no in bikes though. Well, back to work, its 75 degrees out with very low humidity, the bike loves that fat dense air!I bet you wish you were up here with me JC, from the looks of your weather latly. Whew! I bet its hot! Talk to everyone later.

 

[OB_Johnnycheese]

104 and had to umpire two games HOT!!!!!
I know that Victory Motorcycles says DO NOT run SJ or you will glaze the cylinders.
Of course Itwas one of those days could not get an answer from Suzuki

 

[OB_WARBIRD]

WOW! 104! Keep me aprised of the Suzuki call JC and try to stay cool. Your block off plates and new gaskets are working great. I love good products that work.
Later