Royal Purple - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**tjc** · 03-10-2018, 04:25 PM

I have a new engine and new turbo 400. Is Royal Purple worth $15.00 a quart? At $15 x 12 quarts=$180.

**truckster** · 03-10-2018, 05:45 PM

Royal Purple is definitely a very fine motor oil, but I wouldn't use synthetic oil to break in an engine.

rsavage · 03-10-2018, 06:16 PM

If your engine has a flat tappet cam I suggest that you use Brad Penn break in oil 30w and after break in, Brad Penn Grade 1 10-40 or 20-50. Available through Summit.

**tjc** · 03-10-2018, 06:58 PM

sorry ....the Royal Purple was the trans fluid. for $15. quart

68Gold/white · 03-10-2018, 08:32 PM

Quote:

Originally Posted by tjc

I have a new engine and new turbo 400. Is Royal Purple worth $15.00 a quart? At $15 x 12 quarts=$180.

No, No, NO!

Regular dexron III in trans and Brad Penn in engine for break in...then what ever oil you want to use...NOT RP!

I'm from Iowa! BTW!

Bigdav160 · 03-10-2018, 09:39 PM

Any of the new transmission fluids are synthetic base

Alex V. · 03-10-2018, 09:50 PM

There is no need for special oil in the trans. for break-in. Whatever quality of fluid you feel is necessary for the long-term is good from the start.

Brad Penn and Amsoil, among others, make high-zinc break-in oil. After the first 500 mi. (which should mean the rings have mostly seated and the cam is completely broken in) I'd run a 1,000 mi. change of a good high-zinc conventional (probably something rated SM) or use a zinc additive but *not both*.

03-10-2018, 04:25 PM	#1
tjc Senior Member Join Date: Jun 2011 Location: burlington,iowa Posts: 437	Royal Purple I have a new engine and new turbo 400. Is Royal Purple worth $15.00 a quart? At $15 x 12 quarts=$180. __________________ Tom in Iowa 68 L88 C10 68 4x4 C10 soon

03-10-2018, 05:45 PM	#2
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,794	Re: Royal Purple Royal Purple is definitely a very fine motor oil, but I wouldn't use synthetic oil to break in an engine. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson

03-10-2018, 06:16 PM	#3
rsavage Registered User Join Date: Aug 2009 Location: Alden NY Posts: 2,705	Re: Royal Purple If your engine has a flat tappet cam I suggest that you use Brad Penn break in oil 30w and after break in, Brad Penn Grade 1 10-40 or 20-50. Available through Summit. __________________ 1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7

03-10-2018, 06:58 PM	#4
tjc Senior Member Join Date: Jun 2011 Location: burlington,iowa Posts: 437	Re: Royal Purple sorry ....the Royal Purple was the trans fluid. for $15. quart __________________ Tom in Iowa 68 L88 C10 68 4x4 C10 soon

03-10-2018, 09:39 PM	#6
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Royal Purple Any of the new transmission fluids are synthetic base __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

03-10-2018, 09:50 PM	#7
Alex V. Registered User Join Date: Mar 2013 Location: Campbellsville, KY Posts: 888	Re: Royal Purple There is no need for special oil in the trans. for break-in. Whatever quality of fluid you feel is necessary for the long-term is good from the start. Brad Penn and Amsoil, among others, make high-zinc break-in oil. After the first 500 mi. (which should mean the rings have mostly seated and the cam is completely broken in) I'd run a 1,000 mi. change of a good high-zinc conventional (probably something rated SM) or use a zinc additive but not both. __________________ Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.