Which oil to use on the DRZ400?
in [ATVs]
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From: David Kelly on 20 Apr 2008 21:44 Eat Dirt wrote: > On Apr 18, 10:57 pm, Wudsracer <babba...(a)Lucy.com> wrote: >> *************************************** > >> Don't worry about the detergents in modern oil... >> ...It's the friction modifiers that they put in a lot of the newer engine >> oils that can give the clutch a hard time. > > U r correct, I had confused the two. It seems that friction modifiers > are present mostly in 10-30 and by what I read, not on 10-40 and > especially not on 15-40/diesel oil. Friction modifier on a 2 stroke > bike wouldn't be a good thing. Wrong. *All* motor oils contain "friction modifiers". All motor oils *are* friction modifiers. The concern for wet plate clutch is friction *reducers*. Is common to use friction *modifiers* in manual transmission oils to *increase* the friction between copper alloys and steel. This helps make syncros work better. Is also wrong to assume anything over 30 weight lacks friction reducers, there is no requirement that a product containing friction reducers must be labeled, only that if its labeled it must have what is claimed. Several years ago formulation for Mobil-1 15W50 was spoiled with friction reducers. Spoiled badly enough Mobil-1 took 15W50 off the market for a year or so. Is back, supposedly with a formulation reminiscent of its good years. Many find Rotella-T 15W40 is actually better than the synthetic 5W40. I only wish Shell would make a 15W50 or 20W50 Rotella-T.
From: Eat Dirt on 20 Apr 2008 22:20 On Apr 20, 7:44 pm, David Kelly <n4...(a)yahoo.com> wrote: > Many find Rotella-T 15W40 is actually better than the synthetic 5W40. I > only wish Shell would make a 15W50 or 20W50 Rotella-T. For comparison, what is the amount of friction reducer on these $12 litre bottles of Bel-Ray Gear Saver oil versus say, the Rotella 15-50. The fanatics at the track would laugh at anyone using anything other than Bel-Ray and would launch at the throat of anyone suggesting the use of "tractor" oil on their bikes. Naturally I don't listen to these people. But I'm curious as to how the two compare. Also, any way you how these two compare: Rotella T dino with Walmart's Super Tech 15-50? Having a tough time locating Rotella here and want to use Walzymart's brand instead since it's dirt cheap and it's still 15-40.
From: Eat Dirt on 20 Apr 2008 22:22 On Apr 20, 8:20 pm, Eat Dirt <eatdirt...(a)gmail.com> wrote: >Gear Saver oil versus say, the Rotella 15-50. I meant Rotella 15-40
From: JayC on 21 Apr 2008 11:07 > For one the Shell Rotella is by far the preferred by most bike > owners and for a good reason, either the dino 15-40 or the synt 5-40. Interesting, ain't it. It seems that there are a whole bunch of riders out there that swear by diesel oils for high-performance 4- stroke use. Evidently (at least what they say) is that the diesel oils have far better severe-usage additive packages than standard automotive oils. The 5W-40 synthetic seems a favorite for the CRF crowd. It makes me wonder if I should start dumping Rotella 15W-40 diesel oil in my Tundra. I buy it anyway for my Kubota ATV. JayC
From: HellSickle on 21 Apr 2008 15:39
"Eat Dirt" <eatdirt339(a)gmail.com> wrote in message news:d8da61c8-9f1b-4a74-9e2c-c85bc1278c22(a)26g2000hsk.googlegroups.com... On Apr 18, 10:57 pm, Wudsracer <babba...(a)Lucy.com> wrote: > *************************************** > U r correct, I had confused the two. It seems that friction modifiers > are present mostly in 10-30 and by what I read, not on 10-40 and > especially not on 15-40/diesel oil. Friction modifier on a 2 stroke > bike wouldn't be a good thing. > In fact I just did a lot of research online and learned a few neat > things. For one the Shell Rotella is by far the preferred by most bike > owners and for a good reason, either the dino 15-40 or the synt 5-40. Keep in mind, information you get online is worth exactly what you paid for it. (Like advise not to run HD tubes :-) I'm running Shell Rotella in my auto-clutch KTM. Not sure how it would work in a regular clutch. The auto-clutch develops a much higher plate loading than a standard clutch. "Friction modifiers" have to do with elements added to the oil to increase friction. An example is some ATFs. The tendency of clutches to slip with different oils is a function of the design (Ford vs. GM ATF fluids). I've run ATF (Dextron) in my ATK for years. The oil has always come out with little bits of metal stuck to the magnetic plug. With the Rotella in the KTM, the oil is coming out very, very clean at much greater change intervals. I'll probably give it a try in the ATK. Normal engine oils have had to remove a number of good things (such as zinc) for emissions reasons (they poison the catalytic converters). I'm thinking that Rotella doesn't have to meet these requirements, so they can focus on better lubrication. Rotella is also designed to have a much higher carrying capacity (for dirt) so as to enable longer change intervals. -Jeff- |