can i run motor oil in my 400ex?

[pepshocks]

can i run regular car motor oil in my 400ex??????????

[bjg696]

If you want to keep ur clutches in it you better not. Itl eat slam out of it....:eek2:

[katch26]

sure you can, just make sure the oil doesnt have any friction modifiers or say energy conserving. I use rotellat in both my bikes (both wet clutch systems).

"Motorcycle usage

Though marketed as an engine oil for diesel trucks, Rotella oil has found popularity with motorcyclists as well. The properties of heavy duty engine oils tend to map to the same requirements of motorcycle oils, particularly those whose engine and transmission share the same oil. (This is called a "shared sump" design, which is unlike automobiles which maintain separate oil reservoirs - one for the engine and one for the transmission). The chemical additives found in heavy duty engine oils work well with motorcycles. In addition, the lack of "friction modifiers" in truck oils such as Rotella means they do not interfere with proper wet clutch operations.

Though not yet officially announced by Shell, posts in various motorcycle-related forums cite e-mail confirmation from Shell that Rotella 15W-40 CJ-4 has been tested and shown to meet the JASO-MA friction test. This particular certification is important for motorcycles because of the clutch design which is bathed in the engine oil. This is known as a "wet clutch." Oils that have excessive "friction modifiers" tend to make wet clutches slip. Indication that Rotella T Triple Protection passes the JASO-MA friction test offers one more reason to seriously consider Rotella T for motorcycle use.

Motorcycle specific oils tend to cost between $8 and $10 per quart. Shell Rotella T 15W-40 costs about $10 per gallon (or about $2.50/quart). The price economy of Shell Rotella T allows a motorcycle owner to change oil more frequently, thus matching the "extended change interval" value of motorcycle specific synthetics."

[storms400ex]

i use 20w50 synthetic racing oil from vavoline, for 3 years now and still have stock clutch

[77rigid]

I also use Rotella in my quads and have used it for years with no problems.

15w-50 mobil 1 full synthetic oil. Great stuff! As long as it doesnt have molydeblum or say energy conserving your usually fine.

[Pipeless416]

i use mobile 1 20w50 full synthetic motorcycle oil during the summer months and rotella t 5w40 for colder months. no complaints so far!

[hypersnyper6947]

In my new motor im going to run mobile 1 extended performance 15w50, its fully synthetic but its not a motorcylce oil. This is what laz summers at gt thunder suggested. This motor has a 8 plate clutch though i dont know if that makes a difference.

[hypersnyper6947]

I just read the back of the mobile 1 extended performanc 15w50 fully synthetic and i dont see anything about molybedlum or energy conserving.

[NacsMXer]

Originally posted by hypersnyper6947
I just read the back of the mobile 1 extended performanc 15w50 fully synthetic and i dont see anything about molybedlum or energy conserving.

Yeah, that one (15w50 gold cap) and the 15w50 silver cap/red label Mobil 1 are good to go. Not energy conserving, no molybdenum (the correct spelling, believe it or not). Shell Rotella T full synthetic 5w40 is also without molybdenum, and completely safe for wet clutches. Like Pipeless416 mentioned, go with the 50 weight oils when it's really hot in the summer. Go ahead and run something with a good cold temperature viscosity while also having good hot temperature viscosity like the 5w40 Rotella in all other seasons.

For me down here in Florida I can run 15w-50 year round. This chart doesnt show where the high temperature stops, I cant find one that does.

[hypersnyper6947]

Originally posted by FoxHondaRider
For me down here in Florida I can run 15w-50 year round. This chart doesnt show where the high temperature stops, I cant find one that does.

Same here

[Kevslatvin]

This has been debated numerous times. Some say no, others say as long as it doesn't say energy conserving. I just put Shell Rotella T 15W-40 in mine today. I did some digging around and it seems the Rotella T and maybe some of the other "Diesel" are closer to the motorcycle specific oils than are cars oils. There is even some speculation that Rotella T may now meet the JASO MA spec but Shell hasn't submited it for certification. Here are some links that go into more detail. One even has the results from where someone sent some for analysis and it shows the moly content at 1ppm which is virtually none. Also has a good amont of zinc which the motorcycle specific oils have but cars oils no longer do.It's what I am going to run. It's even cheaper than some of the car oils( Castrol GTX, Vavoline).

http://www.shellusserver.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=3452&page=1#Post3452

http://www.shellusserver.com/ubbthreads/ubbthreads.php?ubb=postlist&Board=9
http://www.shellusserver.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=3861&page=3#Post3861

[dunatic]

Ive been running Golden Spectro harley davidson oil.

designed for air cooled motors. CC/CD grade is what they call for.

[big95xj]

Originally posted by hypersnyper6947
Same here

Really? Im in the same area as you and Fox and i found these to be too thick for cold starts...granted its not that cold down here but it seemed as though it cranked slower with the 15 40 i had in it. Now i run Royal Purple 10 40 and runs great...

[CJM]

I have mobil 1 full syn 15w-50, for colder months I like 10w-40.