Advise & Motorcycle Oil for Cars ?

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My first post I need some advise ....

1. Is there a guide somewhere on learning how to intepret UOA Reports that u guys and girls are showing ? I have little clues on what each chemical is doing or if extra what will happen....

2. Came across this website ...
http://www.sportrider.com/tech/146_0310_oil/
One common claim is that motorcycle oils have specific additives that are more suited for motorcycle engines. Based on an average of the three automotive oils we tested, the bike oils do in fact contain more of everything except calcium and boron. Note that the average moly content, which is often the friction modifier of choice, is higher in the motorcycle oils than the car oils mainly due to the three bike oils that use an extremely high moly content.

Another common claim is that the higher price of motorcycle-specific synthetic oils allows oil manufacturers to use not only better and more heat-resistant base stocks (as shown in the heat aging data), but also more additives. Our averaged data shows that in general, the synthetic oils contain as much or more of each additive. Note, however, that we only tested two motorcycle-specific petroleum oils, and results could vary with more oils tested.

There is a comparison Castrol Syntec automobile and Motul 300V which ends up abt the same.

Looking at overall averages, the bike oils have an average of 1986 ppm of calcium versus the car oils' 2702 ppm. While the bike oils average 296 ppm of magnesium, the car oils muster only 54 ppm. Since many of the bike oils do not use any boron, their average is only 96 ppm compared to the car oils' 116 ppm. However, looking only at bike oils that use boron as part of their additive package, the average is 253 ppm. The bike and car oils are clearly different in this category.

For one, most name-brand motorcycle-specific oils are indeed different than common automotive oils, even within the same brand, debunking a common myth. Mobil One automotive oil is definitely different than its motorcycle-specific version. The same is true for the three oils provided by Castrol, showing that both companies have different goals when formulating their automotive and motorcycle products. Whether they perform better-despite the data we've gathered-is still a matter of opinion. Another manufacturer, on the other hand, appears to have selected the same additives in both of its offerings, which begs the question: Are they actually identical and simply relabeled?

Looks like the requirements for bikes oil is higher than cars. But are they compatible or even better ?
 
1. Link removed.
2. Motorcycle oils are formulated for and tested in motorcycles. Non motorcycle oils are not. The article you referenced is a bit out of date. A newer, more complete report can be found at http://www.amsoil.com/lit/g2156.pdf .

Hope this helps.

Edit: Please do not post any links (even pdf files) to sites that sell products or services and are not site sponsors.
 
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Looking at overall averages, the bike oils have an average of 1986 ppm of calcium versus the car oils' 2702 ppm. While the bike oils average 296 ppm of magnesium, the car oils muster only 54 ppm. Since many of the bike oils do not use any boron, their average is only 96 ppm compared to the car oils' 116 ppm. However, looking only at bike oils that use boron as part of their additive package, the average is 253 ppm. The bike and car oils are clearly different in this category.




I would not read too much into the elemental additive comparisons. While I do agree that certain companies do tailor oils for MC's, there is too much variance from brand to brand and even formulations within brand that have nothing to do with application. Just boost Ca for longer drain or whatever, make such comparisons moot.

Sometimes they are the same, a lot of times they are different. But most of the time we are just guessing at the formulations. Are these bike specific oils always better? If they are designed (and actually work) for use in shared gear box without shearing, then the base oil may truly be good. (Again making the additive comparison pointless)

Amsoil 10W-40 used to be the same oil for both, but not any more. The small engine/bike/ATV oil differentiation has really blossomed in the last few years. At first I was not a believer, but the oils are different. Hard to say if in the long wrong it really matters in average conditions, but at the extreme perhaps.
 
Howdy, and
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You can do a google on oil analyzers and they can send you an a soft back guide how to read UOA's.

The reason folks are looking at motorcycle oils for use in cars is mainly the lack of additives that are now common in SM oils. Camshafts that are flat tappet types need some robust additives that are not in the new oils. Muscle car engines of the old....are slowly going away like the steam engine in the locomotive trains of the past. I just read my post...kinda depressing
frown.gif
 
Thanks everyone for the links ... Will be bookmarking them and read up.

LOL I have been using bikes oil for my car even lorries. But generally bikes oil is more expensive and car oil over here for some brands. Is of higher eg 10w - 50/40 etc.. Most is API SG, with some brand top of the range SJ rated. Have been running fine the last 6 -7 yrs but I have not done any UOA for comparison. I don't get plug foul, butt feel better performing except on the heavy side.

http://www.castrol.com/castrol/productdetailmin.do?categoryId=9009697&contentId=7018591
Specification :
- API Service API SJ
- JASO (T903) JASO MA
- Viscosity Grades SAE 10W50

http://www4.esso.com/singapore-English/Lubes/PDS/GLXXENPVLESEsso_4T_Gold.asp
API SJ
 
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