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Switch from Royal Purple 10-40 to? #4444408
06/28/17 10:26 PM
06/28/17 10:26 PM
Joined: Jun 2009
Posts: 429
New England
555 Offline OP
555  Offline OP
Joined: Jun 2009
Posts: 429
New England
Running RP 10-40 in my fox-body 5.0 but was considering a switch to Valvoline Max Life for the additive package. Engine builder recommended Kendall dino 10w40 but eventually switched to full synthetic after break in. Car is driven then parked for months at a time. No leaks, no consumption. Engine builder has since passed away years ago(rest in peace Bob Pucel).
Was considering different oil because the engine was rebuilt 16+years ago(aftermarket intake, cam, rockers and of course aluminium heads and aftermarket cats) and oil technology has changed. Cost not a consideration since it doesn't get driven that much(so sad).
Thanks for reading and responding.


84 XJ6 M1
92 Mustang 5.0 Redline
99 Tahoe 2 door Castrol Edge
99 MX5 Miata Anniversary Edition M1
04 Subaru STi Motul
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444416
06/28/17 10:41 PM
06/28/17 10:41 PM
Joined: Dec 2013
Posts: 2,087
socal
barkingspider Offline
barkingspider  Offline
Joined: Dec 2013
Posts: 2,087
socal
Maxlife 10w40 will be fine in your application


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444425
06/28/17 10:55 PM
06/28/17 10:55 PM
Joined: Jun 2009
Posts: 3,694
Chicago, IL
tomcat27 Offline
tomcat27  Offline
Joined: Jun 2009
Posts: 3,694
Chicago, IL
many engine builders seem to recommend dino. (mine did) they need to hang out here....
while you certainly should not need synthetic, I would run M1 10w-30; PP; Castrol Edge. of course, I don't know your bearing clearances.... But I would imagine that 10w-30 would provide very good protection.
I'm running VR1 20w-50 dino in my 408 and will switch to VR1 synthetic next oil change - probably frankenbrew it with half 20w-50 and half 10w-30. (my clearances are around .035) my builder used an initial fill of Gibbs; but recommends VR1. its all he stocks: VR1 and Gibbs.

Last edited by tomcat27; 06/28/17 10:57 PM.

2019 Cherokee, 2015 Rogue, 2014 Sentra, 2001 Camry, 2005 Starcraft, 1998 Dodge B1500
1996 Sebring Jx, 1984 F150, 1970 Cougar, 2013 XT250, 2010 Vstar, 2014 CTX1300
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444437
06/28/17 11:13 PM
06/28/17 11:13 PM
Joined: Dec 2006
Posts: 18,615
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,615
Dallas,Tx USA
RP (at least the Synerlec/HPS/XPR versions) would have a superior add pack to Valvoline.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444442
06/28/17 11:22 PM
06/28/17 11:22 PM
Joined: Jun 2009
Posts: 3,694
Chicago, IL
tomcat27 Offline
tomcat27  Offline
Joined: Jun 2009
Posts: 3,694
Chicago, IL
I would agree that Valvoline is really nothing special. just using it for the first year for "warranty". after that I will likely go M1 or Amsoil.


2019 Cherokee, 2015 Rogue, 2014 Sentra, 2001 Camry, 2005 Starcraft, 1998 Dodge B1500
1996 Sebring Jx, 1984 F150, 1970 Cougar, 2013 XT250, 2010 Vstar, 2014 CTX1300
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444469
06/29/17 12:28 AM
06/29/17 12:28 AM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
I have had EXCELLENT results keeping a turbo 5.0 alive with just 15W-40 HDEO.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444618
06/29/17 08:17 AM
06/29/17 08:17 AM
Joined: Nov 2012
Posts: 234
NorCal
Seventh Offline
Seventh  Offline
Joined: Nov 2012
Posts: 234
NorCal
I've always run 30wt oils in my full roller 331 stroker in my old ford truck with success. Same 302 engine platform. I won't bother listing all the specs but it's got a very lopey cam and high compression. Just shy of 400 horse.

Oil pressure gauge never shows me anything scary, even after running her real hard for an hour plus. Lowest I've ever seen is 25psi at idle in gear, after some serious flogging.

I fill the sump with 4qts of T5 10w30 and one quart M1 racing 0w30 to give the aw additive levels a kick in the pants. Doesn't burn any oil at all.

Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444703
06/29/17 09:20 AM
06/29/17 09:20 AM
Joined: Oct 2014
Posts: 11,816
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,816
Idaho
Why are you wanting to switch oils?


"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444868
06/29/17 11:48 AM
06/29/17 11:48 AM
Joined: May 2017
Posts: 72
CBUS OH
BironDanmum Offline
BironDanmum  Offline
Joined: May 2017
Posts: 72
CBUS OH
If price isn't an issue stick with the Royal Purple. If you want to get away from synthetics go with Brad Penn. Either one of those would be a better choice than the Valvoline for your application.

Re: Switch from Royal Purple 10-40 to? [Re: 555] #4444879
06/29/17 11:53 AM
06/29/17 11:53 AM
Joined: Apr 2016
Posts: 1,530
Oregon
1JZ_E46 Offline
1JZ_E46  Offline
Joined: Apr 2016
Posts: 1,530
Oregon
I'd stick with Royal Purple, but move to the HPS line. Much healthier additive package. V8s don't need anything terribly special like a high-pressure turbo 4 cylinder would.


2007 X5 4.8i: M1 HM 10W-30
2016 Countryman S: EDGE 0W-30
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4445359
06/29/17 08:35 PM
06/29/17 08:35 PM
Joined: Jun 2004
Posts: 2,682
South Carolina
bmwtechguy Offline
bmwtechguy  Offline
Joined: Jun 2004
Posts: 2,682
South Carolina
Read this: Amsoil Z-rod 10W-30
I know some guys with classic cars/hot rods that like it for their modified engines, and it has special anti-corrosion additives for cars that sit a lot as well.

Or, buy a 5 qt. jug of M1 HM 10W-30 or 10W-40 and throw a can of Liqui Moly MOS2 (German-made quality stuff) in there for extra anti-wear. I get these cans 6 at a time on amazon for less than $6 each, free shipping. Just keep in mind this additive gives your new oil a grayish tint, as it goes in very dark gray out of the can. I have been using this stuff on nearly every oil change for some time. I typically go 1 year or 10,000 miles on this oil/additive combo with a long life filter (15,000 mile-rated), but went 16,000 miles one time and engine still spotless inside. This was with the M1 HM 5W-20 on the wife's daily driver Honda minivan.

For less yearly miles, the Maxlife 10W-30 or 10W-40 would surely do the job just fine, but me personally, I would still add the can of moly.

Re: Switch from Royal Purple 10-40 to? [Re: 555] #4445376
06/29/17 08:57 PM
06/29/17 08:57 PM
Joined: Sep 2015
Posts: 5,839
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,839
Kalifornia Kollective
You don't give the year for the 5.0 ...

But I'm guessing it's a roller cam? If not, be careful ... You need 1,000 PPM Zn and Ph.

If roller cam you are good to go on most modern oils smile

You could run it fine on Rotella T6, or similar smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Switch from Royal Purple 10-40 to? [Re: 555] #4445525
06/29/17 11:26 PM
06/29/17 11:26 PM
Joined: Jun 2006
Posts: 423
midland tx
askani79705 Online content
askani79705  Online Content
Joined: Jun 2006
Posts: 423
midland tx
As suggested earlier a good HDEO will do the trick.


2017 Ford F150 NAPA syn 5w30 Fram 11955.
2000 Chevy 2500 Silverado PYB 5w30 AC Delco Filter
Re: Switch from Royal Purple 10-40 to? [Re: CT8] #4445695
06/30/17 07:53 AM
06/30/17 07:53 AM
Joined: Jun 2009
Posts: 429
New England
555 Offline OP
555  Offline OP
Joined: Jun 2009
Posts: 429
New England
Originally Posted By: CT8
Why are you wanting to switch oils?

Just curious if there was something better for this application.


84 XJ6 M1
92 Mustang 5.0 Redline
99 Tahoe 2 door Castrol Edge
99 MX5 Miata Anniversary Edition M1
04 Subaru STi Motul
Re: Switch from Royal Purple 10-40 to? [Re: BrocLuno] #4445698
06/30/17 07:54 AM
06/30/17 07:54 AM
Joined: Jun 2009
Posts: 429
New England
555 Offline OP
555  Offline OP
Joined: Jun 2009
Posts: 429
New England
Thanks for the responses. I will stick with Royal Purple,

Last edited by 555; 06/30/17 07:56 AM.

84 XJ6 M1
92 Mustang 5.0 Redline
99 Tahoe 2 door Castrol Edge
99 MX5 Miata Anniversary Edition M1
04 Subaru STi Motul

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