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Old 10-06-2014, 10:03 PM   #1
tglennon80
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Default Rotella T 10w-40

Hey guys,
Not sure if I'm going to get mauled by you savages if i post about this oil but....I just put in a new 257 in my wrx and was recommended by my builder to use rotella t for at least the first 1000k miles. Im at 600 miles now and I'm curious on everybody's input on running it long term. I use rotella in my ktm's, Jeep, lawnmower, pressure washer, etc etc. Builder said its a good oil just need to lighten the weight to 10-30 during the winter here in new jersey. any input is good input. thanks
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Last edited by tglennon80; 10-06-2014 at 10:22 PM.
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Old 10-06-2014, 10:05 PM   #2
Js14wrx
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Break it in with whatever and then use t-6.... That's what I'd do


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Old 10-06-2014, 10:07 PM   #3
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you should run what your builder says depending on clearances. That being said, you should be using a conventional oil for break in then switch to the rotella after 1000 miles. Most subie people run Rotella T6 which is a 5w-40.
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Old 10-06-2014, 11:12 PM   #4
HinshawWRX
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Why would you NOT listen to what your engine builder suggested?
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Old 10-06-2014, 11:19 PM   #5
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Ladies and gentlemen, boys and girls, here we have, ANOTHER T6 THREAD. Do what your builder says.
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Old 10-06-2014, 11:22 PM   #6
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Hell, I pour Rotella into my cereal in the mornings. You can bet it's the way to go! 5w40, that is.
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Old 10-06-2014, 11:48 PM   #7
tglennon80
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im not going against my builders suggestions. I'm curious if anyone has continued to run conventional 10-40 long term. i should have clarified that I'm talking about rotella 10-40 T5 conventional not 5-40 T6 synthetic.
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Old 10-07-2014, 12:10 AM   #8
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You're/He's probably talking about the regular 15w40.
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Old 10-07-2014, 07:41 AM   #9
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Quote:
Originally Posted by tglennon80 View Post
im not going against my builders suggestions. I'm curious if anyone has continued to run conventional 10-40 long term. i should have clarified that I'm talking about rotella 10-40 T5 conventional not 5-40 T6 synthetic.
Conventional oil will not hold up very well in our cars, long term. It will shear down rather quickly. Long term, I am thinking +3K miles and I would not push it any more than that, not without doing UOA and assessing how it is holding up.

Not sure why you said you're going with 10W-30 in winter vs. 10W-40. I think you'd want something lower in the first number since that is the cold weight, and in winter, that is the number that will make a difference. IMO, 10 weight in cold months is too heavy. I would not go above 5 unless you live in a warm climate area and do not see freezing temps. If anything, if you could find 0W-40 for winter months, that would probably serve you best. Easier cold starts and still good weight at operating temps. I think Castrol puts something out in that range. Don't know if it is any good.
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Old 10-07-2014, 10:53 AM   #10
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Winter months in the tri state, go with mobil 1...

Wait for it..

0w40 european car formula that is. $25 at walmart. Cant go wrong with that.


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Old 10-07-2014, 11:19 AM   #11
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Quote:
Originally Posted by tglennon80 View Post
Hey guys,
Not sure if I'm going to get mauled by you savages if i post about this oil but....I just put in a new 257 in my wrx and was recommended by my builder to use rotella t for at least the first 1000k miles. Im at 600 miles now and I'm curious on everybody's input on running it long term. I use rotella in my ktm's, Jeep, lawnmower, pressure washer, etc etc. Builder said its a good oil just need to lighten the weight to 10-30 during the winter here in new jersey. any input is good input. thanks
usually people recommend following your builder/tuner's advice, but I'm not so sure about this one.

going from 10w-40 to 0w-40 for winter use makes sense
going from 10w-40 to 10w-30 for winter use does not make much sense.

I usually run Rotella T6 5w40 or Motul 8100 5w40 in the summer, and Mobil1 0w40 (Marked "European Car Formula") in the winter.

Could probably just run M1 0w40 all year round. It's the best deal anyway @ $25.xx for 5qt jug from Walmart

T6 is a little more expensive at $21.xx for 4qt jug + $6.xx for an extra qt.
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Old 10-07-2014, 02:54 PM   #12
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Lol. Run whatever the hell you want during break in. Switch to T6 after.
So much neurosis in here.
I ran conventional walmart oil during break in on my turbo track car and had 0 issues.
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Old 10-07-2014, 10:39 PM   #13
tglennon80
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Quote:
Originally Posted by Badler View Post
You're/He's probably talking about the regular 15w40.
your 100% correct. my mistake. i ****ed up my first post harddddd LOLL..i love the bashing in here, relentless. haahaha i guess i suffered a little neurosis on that one.
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Old 10-07-2014, 10:44 PM   #14
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Just use T6. In winter just add two quarts of your favorite synthetic 5w30 and 2.5 quarts of T6. Works great and I have an oil analysis to prove it. Viscosity is only slightly down from a 40 weight. Wear and everything else were perfect and that's on a car with 101k.
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Old 10-08-2014, 09:34 AM   #15
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i would NOT use synthetic in a new motor...no

smart boi not using syn oil in a new motor

the rotella non syn is a great choice
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Old 10-08-2014, 02:01 PM   #16
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IMO, there's no need to rush in switching to a synthetic or an oil with better cold cranking performance. All 15W's must pass the cold cranking test at -20C.

http://www.pqiamerica.com/coldcrank.htm

-Dennis
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Old 10-08-2014, 05:07 PM   #17
tglennon80
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So I'll be running 15w40 rotella T5 non-synth for 3k miles then switch to synthetic rotella T6 5w-40..thanks for the input guys
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Old 10-09-2014, 11:50 AM   #18
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Dude run what your builder says. Rotella conventional is a good cheap alternative to $20+/quart break in oils. Then switch to normal T6 after the break in period. Rotella T5 is their semi synth, you want the one that just has the T.
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Old 10-09-2014, 09:20 PM   #19
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For winter do not use Mobil 1. Do not. Rotella t6 is safe. Synthetic oil is much better than normal oil when it comes to cold temps. And the rotella shines brighter than the rest due to it containing Zinc, A.K.A. fancy witchcraft dust which helps protect internal parts in the engine and turbo.
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Old 10-11-2014, 08:12 PM   #20
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Quote:
Originally Posted by QsR View Post
For winter do not use Mobil 1. Do not. Rotella t6 is safe. Synthetic oil is much better than normal oil when it comes to cold temps. And the rotella shines brighter than the rest due to it containing Zinc, A.K.A. fancy witchcraft dust which helps protect internal parts in the engine and turbo.
Do you have oil analysis's to prove otherwise why M1 0w40 isn't a good choice to use during the cold winter months?

Wait for it...wait for it.. There is a T-6 0w40 that came out in Canada a while ago. But the M1 0w40 is still cheaper and much easier to find.

Since you think you know something, what specific additive does the M1 0w40 have in it that is better suited for lower wear numbers? It's not zinc in this case.

So to the OP, run conventional for a short period of time for break in then the T-6 5w40. If you want a bit better start up protection during the cold months that is if you live in an area that gets cold then use the M1 0w40.

End of thread.
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Old 10-12-2014, 09:10 PM   #21
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For the difference its not worth compromising the hours that the engine is going to spend at operating temp for a few seconds worth of better oil viscosity. In the day and age of winter oils being used year round, I'm not going to switch to an inferior additive package in the winter just to get a lower viscosity. Until the time that someone comes out with an oil that is thinner than SAE0 weight below freezing.
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Old 10-12-2014, 11:09 PM   #22
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Quote:
Originally Posted by Leafy View Post
For the difference its not worth compromising the hours that the engine is going to spend at operating temp for a few seconds worth of better oil viscosity. In the day and age of winter oils being used year round, I'm not going to switch to an inferior additive package in the winter just to get a lower viscosity. Until the time that someone comes out with an oil that is thinner than SAE0 weight below freezing.
yer outta yer ****ing mind
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Old 10-12-2014, 11:47 PM   #23
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yer outta yer ****ing mind
K 5W40 vs 0W40 enlighten me in the viscosity difference at 32F and throw in 0W20 for comparison's sake.
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Old 10-13-2014, 12:21 AM   #24
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Quote:
Originally Posted by Leafy View Post
K 5W40 vs 0W40 enlighten me in the viscosity difference at 32F and throw in 0W20 for comparison's sake.
its irrelevant......thus my statement
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Old 10-13-2014, 12:14 PM   #25
gsrcrxsi
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M1 0w40 is perfectly fine in winter.
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