Race oil

Posted By: Crizila

Race oil - 08/24/09 06:40 PM

Royal Purple XPR 10W40 gonna be OK in my 408 stroker motor making around 450HP?? Pro's / Con's on this oil?

Posted By: Badfish67

Re: Race oil - 08/24/09 06:43 PM

Brad Penn oil...there is nothing better!

Posted By: Dave64

Re: Race oil - 08/24/09 07:24 PM

Posted By: Locomotion

Re: Race oil - 08/24/09 07:39 PM

New Amsoil Dominator series.

Dominator 5W-20 Racing Oil Product Code: RD20QT-EA
Dominator 10W-30 Racing Oil Product Code: RD30QT-EA
Dominator 15W-50 Racing Oil Product Code: RD50QT-EA

Amsoil tech sheet - zinc.

Where it says "Motor Oil" near the top of the page, just to the left......click the drop down and select "Racing Oil", then "Search".

Amsoil source & info.

Posted By: fourgearsavoy

Re: Race oil - 08/25/09 12:09 AM

Quote:

Brad Penn oil...there is nothing better!

Good stuff green oil

Gus

Posted By: Lil Wedge

Re: Race oil - 08/25/09 02:57 AM

Quote:

Royal Purple XPR 10W40 gonna be OK in my 408 stroker motor making around 450HP?? Pro's / Con's on this oil?

I ran the racing 11 Royal Purple, 2 seasons and bearings showed no wear. Only problem I had it was so thin it would leak in places thicker oils wouldn't. Changed it at the track (due to leaking)went to Valvoline racing 20-50. Using Milodon 8 qt.Pan went from 10.10 with 5 1/2 qts Royal Purple to 10.21 with 6 qts Valvoline. 7 qts took it up to 10.26.

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