How many of you are running Royal Purple oil in your Harleys. I see a lot of good wear test reports on it and a lot of race cars are using it. I have always used HD snythetic.

 

I have been running it in mine for a couple of years now. I have the LCD dipstick and the highest temp I have ever seen was 217 degrees. That was on a 99 degree day when I pulled into my shop after work, 20 miles one way.

 

When you drain yer oil send it to oil analizers and git the truth.

 

The last oil test results I saw had AMS Oil in the lead although I still use Syn-3.

 

I'm running the gear oil in my tranny currently as they were out of Mobil 1. It is easier to see on the dipstick than Mobil!

 

I've read the test and agree, but is that really important other than it makes us feel good? I mean, if we do regular oil changes, does it make a difference in the engine. Now I will say I notice a temperature difference from regular dino oil to synthetic oil, but does the engine notice a difference bewteen synthetics?

The thing is a lot of folks will respond that they use a certain oil and had no problems. But what problems would they expect?

Beary

 

the truth is that you can run just about any oil that meets the factory specs. change it at the recommended interval and you should have many trouble free miles (at least from an oil standpoint)

was that an amsoil sponsored test? here is an independent test in the quest to find the ultimate oil. turns out, there isn't one. some oils are better in some areas than others. end result? use what makes you feel good, and follow recommended change intervals.

http://home.earthlink.net/~skratches...motorcycle.pdf

 

I have used the standard 20w50 RP for three oil changes now. I did run Syn 3. The top end noise "to me" is less and haven't really felt any heat difference.

I change my oil every 5000km.

Smitty

 

Can anyone show me an oil related failure that wasn't due to lack of oil, neglected oil change intervals or lack of oil pressure due to a mechanical problem?

Amsoil, mobile1, Syn3, Royal Purple should Never cause a failure if replaced when due or replaced when severly overheated. Wear is going to occur wth all oil, particles in the oil will cause wear faster, mechanical failure will cause extensive wear.

Pick your poisen, all oils that meet oem specs are fine.

 

Ran the 20w50 (not MaxCycle) in my '96 RK, now with 120k miles, never had the heads removed even for base gaskets. CCP in 1997 was 155F/160R and in 2006 (last check) 160F/160R, with no change in oil consumption. Still using it in the '07 SG. Excellent product, but there are other fine synthetics available, too.