Best Oil for Arizona Heat

[DrHouse]

I was running synth in the HD bagger, but what is the best oil to use in Arizona with temps climbing over 100+ now. Thanks.

[DFWBiker]

Any premium oil within Triumph spec should be just fine. I run Royal Purple 10w40 in my bikes year round here in Dallas. I haven't had any problems in temps up to 115F.

[DrHouse]

Thanks for the info. I was wondering about the weight everone is using.

[motomyth]

Not another oil tread....10w-40 after winter soltice and 20W-50 after summer soltice. Amsoil of course...I feel an oil change comming...

Jeff

[PtboSprintSt]

Kawasaki brand 15W-50. I know, Jap oil in Triumph! Service guy at Triumph dealership recommended it and so far bike running fine.

[DaveM]

Motul 15w50 4T

it gets pretty warm in summer here too.

Davem

[DragonDan]

The standard 'Triumph/ Mobil' oil is 15w-50 fully synthetic (if you consider mineral oil to be synthetic).

I've tried the Rotella fully synth, with no problems, but it was not 15w-40. I didn't see any issues, but mostly it was way cheaper than the factory stuff.
Also I ran the Pep Boys filter, the Purolator PL14610. That's what I'm gonna put in next oil change. Mine is certainly due.