From: Motulusa
Sent: Friday, January 16, 1998 1:55 AM
To:
jjf@inri.com;
gas900@worldnet.att.net
Cc:
ducati@ducati.net
Subject: Re: DUCATI: Oil SJ API ratings question
TO : ANYONE WHO WANTS TO READ IT
Q&A ON OILS
Someone asked about car oil verses m/c oils with concerns of SHEAR.
1. Most car oils are designed for TODAY'S standards. SJ for instance is a good
rating for a car. But if you dig deep into the tests the maximum amount of
extreme pressure additives Zinc, phosphorous and such are cut in HALF in
certain apps.
· WHY, because if the chemicals are burned and get to the O2 sensor they react
with and cause problems, same is true for the catalytic converter. Do you
burn oil and do you have a O2 sensor?
· Car oils do not NEED to bump up the Extreme Pressure (EP) additives as do
REAL MOTORCYCLE OILS.
· WHY, gears, shift drum, shift forks, and maybe the fact that a 916 pumps out
40%+ more HP per CC than most HIGH powered sports cars.
· MOTUL uses two types EP packages. First, Sulfur, zinc, phosphorous and
second is a SULFURIZED ESTER for very big emergencies. I.E., wrong gear under
load up hill wide open. Several times a day!!
-No oil company ever said that using car oil will Break your engine. When you
need the extra protection its there. After the zillion miles are done and you
tear down the engine how many parts are RE-USABLE! That is the question.
Q. The friction Modified SJ oils ECII and SOON ECIII are just plain no good
for high HP. (YAMAHA now has lables stateing "NON FRICTION MODIFIED")
· RINGS don't seat, scraper RINGS don't scrap, roller bearings don't roll they
flatten.....
Q. Viscosity Retention cause of loss.
· Simply put, Petroleum oils need POLYMERS added to make them act like a
MULTI GRADE oil. The polymers look like long spaghetti. When high shear
applications arise such as the pinch and drag of the GEARS in a bike, the long
strands get CHOPPED UP. When that happens, good by MULTI-grade oil.
· The so called fair test done by a magazine, tested synthetics against petro
oils. Synthetics need far fewer polymers to reach the grades and therefore
last longer in retention. This expert tested different grades against
different grades, different times of the year with different temps outside.
Different routes and different loads, and it took 18000 miles to do. The motor
I suppose was exactly in the same condition every time a new oil was used. Oh
please.
For those who compare your car or truck experiences with that of your bike,
remember the differences. HP per CC, Quantity of oil in the sump, cooling
capacity, engine bulk, size of components, RPM....
Remember MOTUL "ESTER" synthetics can handle high temps before burning up,
I.E. Butter verses vegetable oil in a pan. One burns fast and leaves deposits
one can take the heat without leaving much at all. Think of that when a rock
hits your radiator on the top of your canyon run.
If anyone wishes to have some more info on cars verses m/c send e-mail for syn
in America.
motulusa@aol Dave