I've had a couple friends mention Royal Purple synthetic lubricant as of late. One uses their synthetic oil for high mileage cars and the other uses the auto tranny fluid. Both rave avout it's qualities. I was thinking of trying the tranny fluid in my 60 olds..... anyone have comments?
no and wont, too much hype surrounding this stuff, mostly with the import guys, you can do better for less. I pick oils based on test data that's around and Royal Purple isnt at the top (engine oil) this is for engines I care about and its usually Valvoline or Penrite for me.
Can't speak to their motor oils (I didn't even know that they made any...) but their synthetic gear oils are top-notch. Popular for use in final/middle drives on shaft-drive bikes, it'll markedly reduce the running temp of them.
I know it's off topic, but I used their gear oil in my 71 bug, manual transaxle , fixed my 1-2 shift problem even downshifting. I will use it again even on the 61 chevy truck!
i used to use the oil in my avalanches, a race car guy i know always used the gear oil in rearends of race cars, swore they were cool to the touch after a race
If you've ever read their brochure about Royal Purple products and the attributes of each of their products you would never use anything else. Their claims about Royal Purple products are amazing. Tomorrow I'm changing the oil in my 63 Impala (avatar) a 327 original 3oo HP engine with 500 miles on it that is now bored .060 over with TRW domed forged pistons, Comp Cam 262H cam and valve springs, double hump heads, balanced, headers and a Holley 670 CFM Street Avenger Carburetor. Today I just bought Royal Purple HPS (High Performance Street) motor oil for $7.99/quart at the local Napa store. Not a lot of money for a synthetic oil with lots of phosphorous and zinc in it thats specifically designed for flat tappet cams. I've got a lot of money tied up in that engine and am a little anal about using only quality products. Gary
I think, if I had a freshly built engine, I'd probably use their oil. The quality has been proven. But for an older engine, I'd think a regular commercial grade oil would be okay and cheaper.
I had mobil 1 in my OT motorcycle. (97 Valkyrie) Felt like it lost a lot and became a wheezer. I put in the 20-50 RP and it felt new again. I used it for 3 years and bit the bullet every time I ordered it. This time I went AMSOIL,. It runs and shifts pretty much the same.
its been a few years & granted it was on tv, but one of the sunday morning power block shows took a stock 80's Camaro & dynoed it. then replaced coolant, oil & filter, trans fluid, rear end grease with royal purple stuff and re-dynoed it. showed a 10% increase in power.
Using the advice from the old fella who set up my gears "retired petty enterprises" gear guy, I used royal purple synthetic 75w140 In my open wheel dirt mod's diff. Weekly we'd shoot the 9 inch Ford floater's 3rd member after weekly features & the hand held temp gun did notice a slight drop in temp as compared to non synthetic. But I cringed at the thought of loosing a drop of it when I swapped 3rd members , it's not cheap. But after many many laps it contributed no failure & that's worth mentioning. Flux
I was into road racing Corvette from 04 to 10 and wouldn't use anything else. When I put the tranny fluid in my 04 Z06 I could tell the difference on the first shift. When you walked around the pit's there were many racers using RP. Great products.
My son-in-law is a chemical engineer at a local chemical plant here in oiltown. When he started his job at the plant they had been using nothing but RP products in all their machinery. Several years later they decided the RP products were so good and did their job so well that they bought the company. The product is still made just north of Houston as before though.
I used it for one oil change on my 355, but was pretty expensive locally. Been using Brad Penn or Kendall racing oil that I find locally. I buy oil filters at Summit, Wix XP and I get 4 at a time.
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