Royal Purple Motor Oil

[Archive]

Anyone using Royal Purple synthetic motor oil in their Cummins?

 

[Archive]

I use Royal Purple 15W-40 during the summer months It is API approved and CG-4 SJ. I have had analysis`s done on both Royal Purple 15W-40 & Amsoil 15W-40. Royal Purple had less wear metals. You can see it @ www.RoyalPurple.com Click on the automotive retailers & racing oil icon. Dont bother with Long Rider. Its not as good. #ad


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1994 Dodge Ram SLT Cummins 5 speed 4x4,3. 54 gears, Scotty Air System,PIAA Platnum Super Whites,Optima red top batteries, manual trans filter,Turbo&Exhaust blanket,Magnaguard rear diff cover,Edelbrock IAS shocks,muffler removed,Borgeson steering shaft,Trailmaster steering stabilizers,Rancho upper & lower links,Polyurethane sway bar bushings,Skyjacker 2" leveling springs(front),Fabritech Stage II Traction Bars,Denman Coyote A/P LT305/85R16(36" Tall) tires on Stock Dodge Chrome 16x6. 5 wheels,Bushwacker Street Flares,Back-off saftey brake light,Bugflector II bug shield, Royal Purple ,Amsoil& Red line lubes throughout.

1970 Plymouth Cuda (under construction)
1968 Hurst HEMI® Dart , Nah its just a screen name ;-)



[This message has been edited by 1968 Hurst HEMI Dart (edited 10-26-1999). ]