Im thinking about getting Royal Purple. They sell 5W20, 5W30, 10W30, 10W40, 15W40, 20W50. What grade do you guys use on your SRs?? thanks.

 

10-30 if the engine is in good shape 5-20 if its in really good shape, and because the weathers getting colder

 

so, for colder weather, use 10-30??

 

For Florida climate, 10W-30 will be good year round.

 

roger that

 

yeah

 

i wouldnt use synthetic it eats your oil seals on sr's or so im told and i use 10-40 year round and ive had no problems at all

 

well, theres really no reason to go with a lower wintergrade oil. If your engine is like most sr's, its got enough miles on it where you can move up to a thicker viscosity oil to keep the oil film around your bearings lubed for reduced noise and longer life. which is definately a noteworthy tip if your running your engine at high RPM's more than the evreyday driver. but the bottom line is: it doesnt get cold enough in florida to worry about. stick with a 10W-30/40, IMO.

 

Your bearing clearances are for 5w20 - 10w30

 

you you shouldnt run 10w-40 cuz thas what xat told me to run?? awhile ago have things changed? what should i run in a black top sr