Synthetic Oils?

[charger71798]

Would'nt have a problem running diesel oil in a bike if the tranny was separate. It has no rating for 75w90 gear protection that I'm aware of.

[Nessism]

Would'nt have a problem running diesel oil in a bike if the tranny was separate. It has no rating for 75w90 gear protection that I'm aware of.

Sorry, but I don't understand your point. Motorcycles lubricate their transmission with engine oil as I think you understand. The transmission gears chew up the motor oil and force it to break down faster than running said oil in a car engine. Due to this sharing of oil, diesel engine oil is ideal for a motorcycle since the additive package is formulated for heavy duty usage; more appropriate than modern auto oils.

[rustybronco]

The list above is diesel engine oils. As noted, the CJ-4 formula is degraded in some noteworthy areas compared to the CI-4 and CI-4 Plus formulas - less zinc for example.

Ed, after you cannot obtain Rotella T "without" triple protection, what oil will you most likely choose?

Rotella T synthetic, Pennzoil long life, Cummins/valvoline?

[Nessism]

Ed, after you cannot obtain Rotella T "without" triple protection, what oil will you most likely choose?

Rotella T synthetic, Pennzoil long life, Cummins/valvoline?

That's a good question rusty. I went to Walmart last night and ALL the diesel oils they had were the CJ-4 spec stuff - even the Rotella Synthetic.


Going to have to study some more...

[rustybronco]

for starters

http://committees.api.org/FindBrandByServiceCategory.asp?ServiceCategory=CI-4

Premium blue classic

http://www.valvoline.com/products/PBC.pdf

The product meets API CI-4 Plus,

Delo 400 (not le!) ***note*** moly=243

http://www.chevrondelo.com/en/products/engineoil/default.asp#

API Service Categories, including CI-4,

Castrol tection hd 15w40 (not the tection extra)

http://www.castrol.com/liveassets/bp_internet/castrol/castrol_usa/STAGING/local_assets/downloads/t/TectionHD15W40.pdf

API CI-4 Plus

One more note, when I used it, the amsoil m/c 20w50 was a fine oil...

[eddiev]

Sorry, but I don't understand your point. Motorcycles lubricate their transmission with engine oil as I think you understand. The transmission gears chew up the motor oil and force it to break down faster than running said oil in a car engine. Due to this sharing of oil, diesel engine oil is ideal for a motorcycle since the additive package is formulated for heavy duty usage; more appropriate than modern auto oils.

I think your mistaken. The transmission gears sit in gear oil just like a manual trans on a car. It's only our clutchs that are sitting in the same motor oil as the engine.

Eddie V

[Nessism]

I think your mistaken. The transmission gears sit in gear oil just like a manual trans on a car. It's only our clutchs that are sitting in the same motor oil as the engine.

Eddie V

Hi Eddie V,

The GS family of motorcycle engines, and about 95% of all four cycle motorcycle engines for that matter, use the same shared oil supply for both the engine and the transmission. It's because of this shared oil supply, and the shear created by the gears in the transmission, that motorcycles benefit from a more robust oil additive package compared to a car.

[Larry D]

Perhaps he's thinking of the gear oil for shafties.

[waterman]

Perhaps he's thinking of the gear oil for shafties.

But not all shafties use separate oil for their secondaries--650 just use plain oil for everything. Not sure about the 450 auto, it is kinda odd in its own way. Nothing like a good oil thread to stoke the fire.

[rustybronco]

I stopped at Advance auto on the way home. No CI-4/CI-4+ diesel oils from the major players.
but I picked up some Advance brand oils, ( 2) 5w30-sm spec and (1) 20w50-sl spec, on there grand opening special (max purchase 3) for the low, low price of $3.88 per gallon. (warren unilube I.E. coastal?)

going back for some more tomorrow!

[charger71798]

Sorry, but I don't understand your point. Motorcycles lubricate their transmission with engine oil as I think you understand. The transmission gears chew up the motor oil and force it to break down faster than running said oil in a car engine. Due to this sharing of oil, diesel engine oil is ideal for a motorcycle since the additive package is formulated for heavy duty usage; more appropriate than modern auto oils.

OK guys, my point is a diesel oil does not have a JASO MA/MA2 ISO-L-EMA2
SAE 80w90 API GL-1 rating. It is simply for a internal combustion engine-no clutch or transmission. I will say no more. Anyway your engine is so good does it really matter?

[jabberjoe87]

whats wrong with castrol 10w40? NOTHING!!!!

[Nessism]

OK guys, my point is a diesel oil does not have a JASO MA/MA2 ISO-L-EMA2
SAE 80w90 API GL-1 rating. It is simply for a internal combustion engine-no clutch or transmission. I will say no more. Anyway your engine is so good does it really matter?

Which oils meet the JASO MA/MA-2 spec? I know Amsoil does but anyone else?

Keep in mind that in order for an oil to meet the spec, it needs to be tested for the spec. Testing costs a lot of $$, so oil manufacturers aren't going to spend the money testing unless it will help them increase sales and offset the cost. For example, diesel engine oil makers are not going to spend money testing their oil to some motorcycle specific test criteria since 99% of their oil is used in HD truck applications.

[earlfor]

you mean like this I FEEL that synthetic is a waist of your money!!!!

It will only have an effect on your waist if you drink it.

Earl

[Guest]

The GS650G uses engine oil in the transmission, fed by the engine oil pump. But it's a strange transmission.