According to what I have read, the diesels oils (ratings:cf, cf4 etc)are tested at higher temps, heavier loadsand have more detergents than automovitve oils ( rating: sj).

 

HD specs Diesel Engine Oil in the event you can't find "HD" brand oil. There is absolutely nothing wrong with using Rotella, Delo, Delvac, Ursa, Cat, Premium Blue, or other DEOin a HD engine, and you can find many used oil analyses onoil-specific websitesthat prove it's an excellent oil for bikes.

 

What about the Rotella synthetic 5w40? Would this be an option as well?

 

I'd run Rotella 15-40 or Chevron Delo 400 15-40 in dang near any engine on the planet. Those are probably the two toughest dino oils known to man.

 

Yes. I sent an email to Shell asking them that very question, and they answered back saying that it was fine to run 5W-40 synthetic Rotella in the winter & cooler months, but to go back to a "X"W-50 in summer.

 

Thanks Lost1....I ran it in my kawi V-twin...plan on switching back and forth from the rotella to the mobil 20w-50 in the winter and summer months.

 

SLC,
I'm curious:
[ol][*]Have you had that 94 electra glide since new?[*]Has it been valvoline all the way?[*]What major maintenance have you had to do?[/ol]
By the way, I disagree with you about the great oil debate...but I do have to acknowledge, I have a buddy in Texas I used to debate this with all the time. He claimed you don't even need to change oil at all...except for adding some when you change the filter twice a year. He had a 94 FLHS and a late 80s model toyota (that had over 200,000 miles on it), and both ran great under his "maintenance" (or lack there of) program. Every time we had this debate...he'd point to one of those rides...and I'd go get another beer & change the subject when I got back.
Thanks
-clutch-


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I've done alot of reading about shells rotella T oil. and there advertising is about the same as mobils ,amsoils or anyone elses. the thing that sticks in my head is this oil is made for and used by some of the hardest working vehicals on the road. big diesel trucks that will haul 80,000 lbs up and down mountains on a daily basis. they swear by it for good reason it works. now if your bike manufacturer says to use a 10w40 thru 20w50 wt oil it falls in that range and should hold up to any abuse your hot rod "100" horsepower monster could give it. it meets any requirement for usage and the best part its around $10 a gallon.

 

I use both 5-40 and 15-40 rotella and also mobil 20-50 vtwin oil. I have sent in oil samples to blackstone labs on several occassions and both rotellas test out nearly identical to the Mobil vtwin in all catagories. The Rotellas maintain there viscosity where the vtwin 20-50 drops down to the Rotellas level so for all intent purposes your motor will not be able to tell the difference.

 

You can use it and if you look at Walmart you may even be able to get a HDEO synthetic cheaper than the MC rated synthetics which should be just as good.