Big D's Busa
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what do u guys think bout rotella t oil 15w40 in a busa?
shell Rotella t oil?
- Thread starter Big D's Busa
- Start date
bitabur
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From the shell website:
Can heavy-duty diesel oil be used in motorcycles?
Motorcycle gasoline engines may not seem in the same league as the big displacement diesel engine under your hood, but they share some of the same lubrication requirements. So yes, in many cases, a premium heavy-duty universal oil capable of serving both diesel and gasoline engines is the best choice for your bike.
The high power-to-displacement ratio of a motorcycle engine means rod and main bearings are subjected to loads that are not normally found in passenger car engines. The valve train is also highly loaded, and requires extreme pressure boundary lubrication. The same can be said about gears in the transmission, which are normally lubricated by engine oil. Oil additives containing phosphorus protect these highly loaded extreme pressure areas (in both gasoline and diesel engines). Because diesel engines have higher loading of components, more of the phosphorus-containing additive is present than in typical passenger car oils. And with advanced catalyst systems for gasoline engines, the phosphorus content has been declining in passenger car oils.
Since many bike engines are air-cooled, and tend to be operated at high power outputs and speeds, their lubricating oil needs to be more resistant to high temperature oxidation. That?s another advantage of a premium universal oil. Another thing you want in your motorcycle is oil that has excellent viscosity control, so that with use it retains high temperature viscosity. Some multiviscosity grade passenger car oils, subjected to extreme loads, can quickly thin out. Their viscosity can drop to the next lower grade.
One last thing to consider is whether oil contains friction modifier additives. For improved fuel economy, most passenger car oils have such an additive. But the wet clutch in your bike doesn?t perform right with friction modifiers. Universal engine oils don?t have friction modifiers.
Be careful choosing diesel oils. Not all of them are universal. In addition to the API Service Category CI-4 PLUS for diesels, look for API Service Category SL.
Premium universal oils like Shell ROTELLA? T Multigrade are formulated for heavy-duty performance, and your bike engine has some heavy-duty challenges for oil. For optimum performance, be sure your oil is up to the challenge.
[/Quote]
Do you recommend using ROTELLA in wet clutch applications?
ROTELLA T does not contain friction modifiers that are added to many passenger-car-only-oils, and it does not comply with all requirements of ILSAC GF-1, GF-2, GF-3 and GF-4 (the ILSAC oil specifications are often recommended by many gasoline passenger car engine manufacturers). That can be good for motorcycle/ATV use. Friction modifiers can upset wet clutch operation. And the ILSAC requirements limit phosphorus content.
Diesel engines and other engines with highly loaded valve trains, as well as transmissions, need extra (compared to passenger car engines) extreme pressure wear protection, which is provided by an additive that contains phosphorus.
One negative might be where the engine manufacturer recommends oil meeting JASO requirements. Part of the JASO requirement limits ash content to 1.2%.
Oil ash contributes to combustion chamber and spark plug deposits.
The ash content of CI-4 PLUS spec-ed ROTELLA T Synthetic SAE 5W-40 is 1.47%. However, the CJ-4 spec-ed Shell ROTELLA T with Triple Protection is now at 1.0% ash.[/Quote]
They say its ok.
Can heavy-duty diesel oil be used in motorcycles?
Motorcycle gasoline engines may not seem in the same league as the big displacement diesel engine under your hood, but they share some of the same lubrication requirements. So yes, in many cases, a premium heavy-duty universal oil capable of serving both diesel and gasoline engines is the best choice for your bike.
The high power-to-displacement ratio of a motorcycle engine means rod and main bearings are subjected to loads that are not normally found in passenger car engines. The valve train is also highly loaded, and requires extreme pressure boundary lubrication. The same can be said about gears in the transmission, which are normally lubricated by engine oil. Oil additives containing phosphorus protect these highly loaded extreme pressure areas (in both gasoline and diesel engines). Because diesel engines have higher loading of components, more of the phosphorus-containing additive is present than in typical passenger car oils. And with advanced catalyst systems for gasoline engines, the phosphorus content has been declining in passenger car oils.
Since many bike engines are air-cooled, and tend to be operated at high power outputs and speeds, their lubricating oil needs to be more resistant to high temperature oxidation. That?s another advantage of a premium universal oil. Another thing you want in your motorcycle is oil that has excellent viscosity control, so that with use it retains high temperature viscosity. Some multiviscosity grade passenger car oils, subjected to extreme loads, can quickly thin out. Their viscosity can drop to the next lower grade.
One last thing to consider is whether oil contains friction modifier additives. For improved fuel economy, most passenger car oils have such an additive. But the wet clutch in your bike doesn?t perform right with friction modifiers. Universal engine oils don?t have friction modifiers.
Be careful choosing diesel oils. Not all of them are universal. In addition to the API Service Category CI-4 PLUS for diesels, look for API Service Category SL.
Premium universal oils like Shell ROTELLA? T Multigrade are formulated for heavy-duty performance, and your bike engine has some heavy-duty challenges for oil. For optimum performance, be sure your oil is up to the challenge.
[/Quote]
Do you recommend using ROTELLA in wet clutch applications?
ROTELLA T does not contain friction modifiers that are added to many passenger-car-only-oils, and it does not comply with all requirements of ILSAC GF-1, GF-2, GF-3 and GF-4 (the ILSAC oil specifications are often recommended by many gasoline passenger car engine manufacturers). That can be good for motorcycle/ATV use. Friction modifiers can upset wet clutch operation. And the ILSAC requirements limit phosphorus content.
Diesel engines and other engines with highly loaded valve trains, as well as transmissions, need extra (compared to passenger car engines) extreme pressure wear protection, which is provided by an additive that contains phosphorus.
One negative might be where the engine manufacturer recommends oil meeting JASO requirements. Part of the JASO requirement limits ash content to 1.2%.
Oil ash contributes to combustion chamber and spark plug deposits.
The ash content of CI-4 PLUS spec-ed ROTELLA T Synthetic SAE 5W-40 is 1.47%. However, the CJ-4 spec-ed Shell ROTELLA T with Triple Protection is now at 1.0% ash.[/Quote]
They say its ok.
Big D's Busa
Registered
Ok guys thanks i been usin regular castrol 10w-40 gtx, dont seem to hold up.
Certain oils have additives for clutch packs, make sure to choose wisely or damage will occur, I have had good luck with Castrol Actevo made for bikes, Castrol Gtx is formulated more for vehicles.
Rotella diesel oil is a great oil for M/Cs. It doesn't have friction modifiers in it like car oil does. Friction modifiers are bad for M/C clutches. Alot of people are using it in their bikes as it used to be fairly cheap at Walmart. I have had their synthetic in my 05 Concours for 20k now and the bike loves it. I'll probibly use it on my next oil change on the Busa. Walmart has risen the price on the dino and synth in the last 6 mos or so. It used to be a real bargin.
Big D's Busa
Registered
Ya i think i am gonna go with the rotella t been hearing alot of people say it even makes ur bike shift smoother.
I've been using this one for a while now... Valvoline Extreme Blue 5W-40 Full Synthetic
TallTom
Registered
You might want to ping MountainMotor and see if he can give you some of his knowledge on oils. He knows the science, and the results and can quantify them in real world testing. I had this very same discussion with him, and no longer use Rotella oil. He doesn't sell any products so he has no ax to grind. Or you can PM me and I will forward you the info he imparted to me a few weeks back when I had an oil light flicker on at idle.
The man is busy and I don't want him to feel like he "owes" us any of his time. What he sent me took him hours to write and I am grateful for his knowledge.
The man is busy and I don't want him to feel like he "owes" us any of his time. What he sent me took him hours to write and I am grateful for his knowledge.
Nectars in quart bottles
Your correct in that I don't sell oils but I must ask with a please that any engine oil information I give in private messages needs to remain just that - private and confidential .
When Suzuki builds 2000 rpm diesel engine bikes that heavily laden the oil with diesel soot then Rotella might be a great choice .
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