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I cannot see the rating circle on that oil. I have not used it, but unless the bottom half of the circle is empty, its not good for our wet clutch, shared sump setup.
I can tell you Castrol 20w50 conventional has an empty lower circle as does good old Walmart Supertech 20w50.
There are many, many oil threads to search through. The Castrol and Supertech are easy to find and reasonable cost and don't slip the clutch packs.
If it does not have friction modifiers (empty lower circle) try it and report back.
Go ahead, click on the bikes - you know you want to...the electrons are ready. '81 XS1100H - "Enterprise"
Bob Jones Custom Navy bike: Tkat brace, EBC floating rotors & SS lines, ROX pivot risers, Geezer rectifier, new 3H3 engine
I found a listing for the VR1 oil you're asking about.
Here is what it says:
QUOTE:
==================================================
Valvoline 211 VR1 20w50 Conventional Racing Oil - High Zinc - Case of 6 Quarts
The #1 selling racing motor oil. High zinc provides race-level protection for any vehicle.
More NASCAR Sprint Cup and top NHRA crew chiefs use Valvoline. Valvoline Racing Oil's exclusive chemistry is designed to reduce friction and enhance power. It is among the most popular engine lubricants in all types of racing including paved and dirt ovals, and drag racing. Formulated for race engines, but compatible with passenger vehicles too.
High zinc/phosphorus provides extreme wear protection, including flat tappet applications
Additional friction modifiers to help deliver maximum horsepower
Enhanced anti-foam system protects engine during extreme stress
Compatible with gasoline or alcohol fuels
==================================================
So, it would appear this oil does indeed have friction modifiers ... and as John alluded to, these XS11 engines/clutches don't like friction modifiers.
Running with friction modifiers in the oil does not typically show up all at once. It will absorb into the cork material of the friction plates and there tends to cook in. So even though you put it in and it runs fine at first it can cause a an issue. I can say that if you feel any slip at first it will get worse and may take time to get it out even after oil is changed if then. There are technical threads you can find on the WEB that describe the effect of friction modifiers over time. However its a simple thought process. If the friction modifiers stick to a fine polished hardened steel surface and make it slip easier imagine what it does in a metal fiber/cork disk system.
To fix the problem one should not make more assumptions than the minimum needed.
I'm thinking of giving Mobil 1 V-twin 20W50 a try. It's formulated to work with wet clutches, it's full synthetic so it will outperform and outlast dino, and it will still flow down to -40 degrees. Most oils start to thicken up below freezing, so if you run your bike when it's cold out that's a big plus.
I think I have a loose screw behind the handlebars.
I'm thinking of giving Mobil 1 V-twin 20W50 a try. It's formulated to work with wet clutches, it's full synthetic so it will outperform and outlast dino, and it will still flow down to -40 degrees. Most oils start to thicken up below freezing, so if you run your bike when it's cold out that's a big plus.
I have used it. No problem.
Marty (in Mississippi)
XS1100SG
XS650SK
XS650SH
XS650G
XS6502F
XS650E
I'm thinking of giving Mobil 1 V-twin 20W50 a try. It's formulated to work with wet clutches, it's full synthetic so it will outperform and outlast dino, and it will still flow down to -40 degrees. Most oils start to thicken up below freezing, so if you run your bike when it's cold out that's a big plus.
Hey DB,
We've talked about using synth before...and with the loose ring tolerances of our engines, the oil gets contaminated fairly quickly, 2-3k miles, and usually requires changing at that time. SO....using $$ $ynthetic oil for durability seems a waste of $$. The regular oil doesn't necessarily break down as much as it gets dirty in the oil change time interval. But it's your $$. In really cold weather, folks like to run 10-40 since the engine doesn't really get that warm/hot in ~30-40 degree weather to need the 50 component!? YMMV.
T.C.
T. C. Gresham
81SH "Godzilla" . . .1179cc super-rat.
79SF "The Teacher" . . .basket case! History shows again and again,
How nature points out the folly of men!
Have no problem with its use, but 20-40w, then later yrs. 20-50 w havent been an issue for 34yrs.either............and to old with more common sense!
81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.
Have no problem with its use, but 20-40w, then later yrs. 20-50 w havent been an issue for 34yrs.either............and to old with more common sense!
..........no longer 'bullet proof' either.
81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.
We've talked about using synth before...and with the loose ring tolerances of our engines, the oil gets contaminated fairly quickly, 2-3k miles, and usually requires changing at that time. SO....using $$ $ynthetic oil for durability seems a waste of $$. The regular oil doesn't necessarily break down as much as it gets dirty in the oil change time interval. But it's your $$. In really cold weather, folks like to run 10-40 since the engine doesn't really get that warm/hot in ~30-40 degree weather to need the 50 component!? YMMV.
T.C.
The other thing that intrigued me about the Mobil 1 V-twin is it's thermal properties. Supposed to be better at high temps as well as low temps. Dunno, but I figure I'll give it a try and see if I notice any difference. 3k miles is about all I ride in a year anyway, and I'd change my oil once a year whether it needed it or not. It's pretty pricey stuff though - $10.99 a quart locally.
I think I have a loose screw behind the handlebars.
Have no problem with its use, but 20-40w, then later yrs. 20-50 w havent been an issue for 34yrs.either............and to old with more common sense!
Anything else is just a waste of money and will possibly cause problems.
K.I.S.S.
Greg
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”
― Albert Einstein
80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.
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