why only a heavy duty diesel oil should be used

[98valk]

http://www.lngpublishing.com/LNGmagazine/index.cfm
this months issue
http://viewer.zmags.com/publication/e9f4b3fd#/e9f4b3fd/1

see article  Two-wheelers love oil too!

they have a pic of the new goldwing valkyrie as a bonus.
JASO spec'd motorcycle oil are basically the same specs as heavy-duty diesel oil standards.
JASO does not test oils, manufactures pay a fee to JASO and state their oil meets the specs.

see article, another grade for the heavy-duty upgrade?

even better diesel oils coming into the market much better wear protection and using a 10w30 for better mpg.

I have posted my used oil analysis before using 10w30 diesel oil for 8k miles from the hot summer through a cold winter riding with the bike sitting for 1 month, one of the toughest conditions for an oil. UOA came back normal to low wear and oil was still good for continued use, at least another 2k miles.

for one example there have been posts by others who run rotella 5w40 for 10 k miles and have over 100k miles on the bike.

[Patrick]

I've liked diesel oil in gas engines for a long time. People think I'm nuts for that. But, especially when manufacturers started using roller camshafts and the zinc has been reduced in gas motor oils, the extra zinc in diesel oil is a good thing for flat tappet engines.

[98valk]

I've liked diesel oil in gas engines for a long time. People think I'm nuts for that. But, especially when manufacturers started using roller camshafts and the zinc has been reduced in gas motor oils, the extra zinc in diesel oil is a good thing for flat tappet engines.

that's cause they only read the big words  and don't read the fine print which has always stated for gasoline engines.
I really like the new Delo which has good amounts of the new anti-wear additive Boron, some writings indicate its better than zinc.

[wild6]

Just in case your wallet also needs a reason:

Rotella T5 gal for $16 here:
http://www.walmart.com/ip/Shell-ROTELLA-T5-10W30-Synthetic-Blend-Motor-Oil-1gal/20573564

And a 5$ rebate here:
http://www.shell.com/rotella/promotions1/spring-synthetic-promotion.html