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Which weight oil to use on performance app.

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Gasolinebaptism

10+ Year Contributor
953
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Feb 3, 2010
Kennewick, Washington
I am running a set up On Link V2.
Manley Turbo-Tuff I-beams. 690 grams
Ross Pistons (9.0 comp.) 318 grams
Polished Crank.
FP .88HTA
comp 101200 cams.
1990 oil cooler
working on keeping the engine cooler, hopefully below 190*

Now, this build is fairly new, and it'll be my first oil change on the complete build. Typically I have the rev limiter set at 8250. I don't have it higher. It'll get to 100 degrees in my area probably 15 times over the summer. The previous owner used 20-50.
So I want something that will have good heat dispersion properties, but I also don't want something too thick... I was thinking a 0-50 or a 0-40...
What do you guru's of mathematics have to say, especially regarding my rods and pistons for best results.

brand will be mobil-1 or better.
 
Use OEM recommended weight for daily use and 20W-50 for track use. You can use 10 or 5W-40 if you want a thicker oil for better protection, but if the engine was just built that is probably not needed.
 
I would avoid mobil-1 for your information. There was a thread on what oil to use when you move past stock engine and application. Let me see if I can find it.

*edit*
Linky, I can only find this unfortunately, there was a really good thread in tuners where people were discussing what oil protect the engine really well with the minerals in it.
 
Last edited by a moderator:
0 weight oils are for hybrids mostly. Very little protection, but very little friction. I run 20w-50 in mine, its about 95-100 every day so far down here and I still have great oil pressure after 35miles of straight highway driving (80mph-3-3.2k rpm).
 
Last edited by a moderator:
I would avoid mobil-1 for your information. There was a thread on what oil to use when you move past stock engine and application. Let me see if I can find it.

*edit*
Linky, I can only find this unfortunately, there was a really good thread in tuners where people were discussing what oil protect the engine really well with the minerals in it.

I read the same article. They tested brad Penn oil vs Mobil 1 synthetic and 2 pulls with Mobil one showed severe bushing damage. If u can't find brad Penn the diesel oil is a choice to. It has a high zinc count is one of the reasons giving for the benefit. But it can hurt your catalitic converter if u still have it.
 
Yes only run the 20w-50 in the summer above 60 degrees. Anything under 60 degrees i would run 10w-30 or similar viscosity oil to prevent a dry startup.
 
I run Valvoline VR-1 20w-50 non-synthetic in my car. It gets between 90-100 almost everyday here in the summer. I live right outside new orleans. I'll be switching to 10w-30 in the winter when it gets in the 50s and under.
 
Hey Paul,

What oil would you run in a 98 N/A with minor mods (intake, full exhaust, ## pulley, msd)

Only reason I ask is because it seems like we have similar enviroments.. I'm in 100+ degree weather all day long (Phoenix, Arizona)
I honestly have no clue which viscosity to recommend to you. I know little to nothing about the 420a engine and haven't owned one in almost 10 years. If I were you, I'd be asking Mark Bullet or one of the other knowledgable 420a gurus.

There's no where in 50 miles that sells Brad Penn oils..
Why not order a case of it and have it shipped in?

There's a shop in West Richland called Shelby Super Cars, LLC, and they can order in Brad Penn from one of their suppliers, Motorstate. ;)
 
I live here and didn't know Jerod Shelby actuaually had a shop...
I saw him driving around his personal Ultimate Aero a couple of weeks ago, and his personal word is, that he plans on making it to 280 in the second generation.
I'll give them a call. Thanks man.
 
0 weight oils are for hybrids mostly. Very little protection, but very little friction. I run 20w-50 in mine, its about 95-100 every day so far down here and I still have great oil pressure after 35miles of straight highway driving (80mph-3-3.2k rpm).

I'm with you on the 20w-50 but zero weight oils are not mainly for hybrids. Just didn't want guys reading that and believing it.
 
To add to the Brad Penn oil, it is a great oil and I run it but I was running the 20w-50 and was seeing over 100 psi oil pressure which let to blowing the seal on the oil filter. I am still going to run Brad Penn but going to go down to the 10w-40. This car is stored winters but gets driven in spring and fall(Whenever roads are clear). Anyone see anything wrong with running 10w-40 even in the summer? I have an external oil cooler.
 
I use mobile 1 synthetic 10w-30 all year round. But brad penn 20w-50 during summer and brad penn 10w-30 winter is a good combo.The higher the weight the harder on cold starts is usally what ive seen.
 
After reading this Im gonna go with valvoline 10w30 vr1. What would be a reccommended service for a oil change using these oil. Since they are mostly detergent free?
 
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