Which Oil's are 100% class 4 base stock?

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WOT AFR = 11.2-11.4

Idle 14.7

cruising 13ish

I will not use any oil that is 0w or 5w. I do not live in the artic and if I am not mistaken 0w/5w/10w all have the same viscosity at 70F???

I dont change it everytime at the strip

Also due to lower octane fuel(93 octane refinery went bankrupt) I will run a meth injection sistem with 100% meth but remember the meth injection will be minimal compared to the fuel consumed. A tank of meth lasts a couple of tank fulls this is not the same as running alcohol/nitrometh alone.
 
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Originally Posted By: Androdz

I will not use any oil that is 0w or 5w. I do not live in the artic and if I am not mistaken 0w/5w/10w all have the same viscosity at 70F???

That's a basic misunderstanding of motor oil.
Most premium race oils today are 0W-XX and of course that has nothing to do with racing in the Artic but is a consiquence of using high quality, high viscosity index base oils. A high VI is considered a very desirable attribute in a performance oil today.

If you want a companies best oil it will not likely be in a low VI 10W-30 grade. As shpankey pointed out with Red Line, the best oil choice would be their 0W-30, their 10W-30 is an redundant obsolete oil.
 
Ya I'm runnin Devil's Own Meth on my Speed 3 too. The thing with a mostly Grp V oil like the above's though is those lower w ratings usually come for free as it's just the properties of having a lot of esters in the oil. They don't typically have to use a lot (if even any) of shearable VII's in the mixture to attain those 0w, 5w ratings. So they kind of come free.
smile.gif
 
Originally Posted By: shpankey
The thing with a mostly Grp V oil like the above's though is those lower w ratings usually come for free as it's just the properties of having a lot of esters in the oil. They don't typically have to use a lot (if even any) of shearable VII's in the mixture to attain those 0w, 5w ratings. So they kind of come free.
smile.gif


Even Red Line is not mostly ester but rather a PAO/POE blend.

VIIs can actually hinder an oil acheiving a 0W or 5W rating.
It's the base oils used that determine whether an oil is a 0W or 5W.
And don't be to concerned about an oil containing shearable polymer VIIs as the best used today are very shear stable and they do have other lubrication benefits.
For example Red Line 0W-30 does contain a small amount of polymer thickeners although the oil is still very shear stable.
 
Cool, thx for the explanation CAT. My understanding of oils is still very limited. I knew one of you experts in the thread would clean up my mistakes for me though.

I have seen you say many times that one should use the thinnest oil possible that achieves the proper oil temp and pressure. Or something to that effect, so maybe just echoing that sentiment to the OP will help me to add to the thread. I'm still learning so I very much appreciate the correction. Though I might argue, if I knew for sure (I don't), that as long as the oil contained more esters than any other ingredient that it would fit the term "mostly".
wink.gif
Though it would probably be incorrect as I'm thinking now it would need to be more than all of the other ingredients combined to be true. Anyways, thanks again.
smile.gif
 
His fuel trims. He was listing it in response to how rich/lean his tune is. The top 1 he listed is Wide Open Throttle (WOT) Air Fuel Ratio (AFR), then the idle AFR, then at cruising speeds. It doesn't look overly rich to me, so he's probably ok unless there's some kind of mechanical issue.

I'm not tuned yet so mine is richer than those. Not sure if he listed oil pressure & temps. I missed it if he did. But just for my own clarification as I've seen you list it before, what is ideal? I remember you say it before; something about x per 1k rpm's?
 
Androdz, are you going to go and get it tuned for the meth injection and up your boost? COBB wouldn't even install my meth kit for me for fear of me running it out and the higher boost frying it. Lol. I'm looking in to an electronic low meth warning light. I've already got a 2.5 gallon sumped tank.
 
Originally Posted By: shpankey
Not sure if he listed oil pressure & temps. I missed it if he did. But just for my own clarification as I've seen you list it before, what is ideal? I remember you say it before; something about x per 1k rpm's?

The 10 psi/1,000 rpm is a very rough guide.
If you can get a manufacturer's spec' that's best.
But generally, depending on the make, the optimum oil pressure will be in the 50-75 psi range at maximum rev's. 50 is typical for a Chevy, 60 for a BMW and 75 psi for a Porsche.
For you're Mazda I would guess 65-70 psi would be good.
In all likelyhood, runnind a 3.1-3.2 HTHSV 30wt oil your hot OP will be higher than 70psi particularly with a hugh 2.5gal sump.
 
Thanks. The 2.5 gallon sumped tank is the methanol tank though. Not sure what my oil works out to, but it takes 5 & 1/2 quarts when I put on a new oil filter
 
Originally Posted By: boxcartommie22
again, red line is a group 5 with about 5% pao!!!motul300v is all grp 5

Really! What's your source?
According to Dave at Red Line, the PAO content is "significant".
5% doesn't sound "significant" to me.
 
just again spoke with dave at red line.all their oils are a grp 5 oil and have very little pao in them...dave cannot give out the percentages...so no one really knows!!joey at motul says their 300v is all 100% ester..so i mix the two 4 qts red line and 2 qts motul..cars love it
 
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I remember a quote from Dave awhile back, posted here, where he said they also used some Grp 2 in their mix as a carrier. I guess maybe that's one of the strong suits of a Group 2?

Or maybe that was Royal Purple I'm thinking of.
 
that was royal purple...dave also said there is noooo dino oil for a carrier it is all 100% synthetic. i remember long time ago some tribologist said they did not know how red line does their grp 5 oil and keep the seal swell down the same time.
 
Originally Posted By: CATERHAM
Originally Posted By: boxcartommie22
again, red line is a group 5 with about 5% pao!!!motul300v is all grp 5

Really! What's your source?
According to Dave at Red Line, the PAO content is "significant".
5% doesn't sound "significant" to me.


He never said it was significant to me. I know Maxima uses a very high percentage of esters.
 
Originally Posted By: aquariuscsm
I know RP used to be a pao base,ester additive (Synerlec) and grp III as the carrier.


It's a proprietary blend of Group IV and Group V base oils and is formulated with the ZDDP as close to the 800ppm max phosphorous as possible without going over.It is formulated to be within the chemistry restrictions of an API-SN oil.
 
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