Redline 5W-20 shear stability.

[SpitfireS]

Well.. I'm not posting the UOA because its not mine but I was surpriced to see Redline 5W-20, used in an F22 engine (Honda S2000) shear down to 7.81 cSt in only 1300 miles.
No fuel dilution, high flaspoint.
TBN was 5.6
According to the website this oil starts life at 9.1 cSt.
The "30 weight like" HTHS of 3.3 is remarkable.

I was expecting a more shear stable oil.
The F22's (and the F20's) are not that hard on oil.

Thoughts?

Could the leftover additives of the dino used before have anything to do with this?

 

[CourierDriver]

I guess Im the only one in here that has not heard of redline oil, have not seen it in stores in tennessee, so where is this stuff sold

 

[qship1996]

Could be....I just reviewed my latest redline sample 0w-30, run for 7605 miles in a 32 valve 4 camshaft timing chain driven alloy v8, and it came back great, and did not shear at all- and the engine has 245,000 miles on it.

 

[pcfxer]

I find that hard to believe. Perhaps someone has thought to be smarter than RedLine and dosed the oil with additives galore.

qship, is that a Ford V-8? ZR-1?

 

[REDDOG]

SpitfireS,

Which lab did the UOA you are referring to?

 

[qship1996]

Originally Posted By: pcfxer
I find that hard to believe. Perhaps someone has thought to be smarter than RedLine and dosed the oil with additives galore.

qship, is that a Ford V-8? ZR-1?



Infiniti 4.5 liter dohc V8

 

[buster]

I wouldn't put much into one sample. Could be a lot of reasons.

 

[hate2work]

Originally Posted By: CourierDriver
I guess Im the only one in here that has not heard of redline oil, have not seen it in stores in tennessee, so where is this stuff sold


http://www.redlineoil.com/products.aspx

 

[iunderpressure]

I buy my redline at ogracing.com. Very fast shipping and free shipping if over $100.00. I have never seen it in a store.

I have never had redline shear either. In fact the 5w30 has a cst of 10.6 at 100c. After running it just short of 10,000 miles it was 10.65cst. Most stable oil i've ever used.

 

[Dieseldoctor]

Funny... i think the lab screwed up.. because it's one the most stable oils u can buy.. i'm running it in my G35 just because of the shear factor.. if that was the case in 1500 miles a conventional oil would be water..

 

[Mitch Alsup]

perhaps that oil picked up a whole bunch of sludge which then thinned the oil. That is, there are mechanisms other than shear that can thin oils.

 

[Rand]

I usually buy mine at summit racing.

its local

I have used the motor oil.. now I mainly use the ATF, gear oils etc

 

[Ben99GT]

Probably just a sampling error, RL 5W-20 and 5w30 are among the most shear resistant oils you can buy for any price.

 

[SpitfireS]

Blackstone.

 

[CATERHAM]

There you go.

I agree with the other opinions here than it's some sort of error.
I've used the RL 5W-20 (which contains no VII's) including some track day thrashing and have noticed zero shear.

BTW, RL's 5W-20 is certainly not their most advanced grade.
IMO, as mentioned by qship1996, their 0w30 is a better all round choice. It only contains a touch of VII's and is very shear resistant. It's actually lighter than RL's 5W-20 at all temps as high as 35C.

 

[kr_bitog]

Originally Posted By: CATERHAM
There you go.

I agree with the other opinions here than it's some sort of error.
I've used the RL 5W-20 (which contains no VII's) including some track day thrashing and have noticed zero shear.

BTW, RL's 5W-20 is certainly not their most advanced grade.
IMO, as mentioned by qship1996, their 0w30 is a better all round choice. It only contains a touch of VII's and is very shear resistant. It's actually lighter than RL's 5W-20 at all temps as high as 35C.

interestingly redline advise me to go all year round on 5w30 rather 0w30 or 10w30 for medium high temperature climate. My guess is the higher hths give better shear resistant

 

[demarpaint]

Originally Posted By: kr_bitog
Originally Posted By: CATERHAM
There you go.

I agree with the other opinions here than it's some sort of error.
I've used the RL 5W-20 (which contains no VII's) including some track day thrashing and have noticed zero shear.

BTW, RL's 5W-20 is certainly not their most advanced grade.
IMO, as mentioned by qship1996, their 0w30 is a better all round choice. It only contains a touch of VII's and is very shear resistant. It's actually lighter than RL's 5W-20 at all temps as high as 35C.

interestingly redline advise me to go all year round on 5w30 rather 0w30 or 10w30 for medium high temperature climate. My guess is the higher hths give better shear resistant


They told me for my Jeep their 5W20 was a better choice than their 0W20.

 

[CATERHAM]

Yes it does appear that oils with higher HTHS vis for their SAE grade are more shear resistant but that has to do with the fact that they usually have lower percentages of VII's.

RL's 5w30 contains no VII's so not surprisingly it is very shear resistant.
I'm not surprised RL recommended it for your Florida climate.

 

[CATERHAM]

I'm not surprised RL recommended their 5W-20 for your Jeep and I bet it was Dave Granquist who made the recommendation but I'm sure Dave also said their 0W-20 would also work just fine.

It's all about application. If you routinely get your car up to operating temperature and in fact spend 90% of the engines running time at operating temp' then many of the advantages of a light 0W-20 like RL's don't apply.

 

[qship1996]

Originally Posted By: CATERHAM
I'm not surprised RL recommended their 5W-20 for your Jeep and I bet it was Dave Granquist who made the recommendation but I'm sure Dave also said their 0W-20 would also work just fine.

It's all about application. If you routinely get your car up to operating temperature and in fact spend 90% of the engines running time at operating temp' then many of the advantages of a light 0W-20 like RL's don't apply.




Sure they do, if you are starting it in cold weather.