Would anyone consider Rotella T5 or T6 a good idea for a high mileage Ecoboost F150?
Rotella T5 or T6 for Ecoboost??
- Thread starter Volv04Life
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High mileage, as in out of warranty? I'd run T6.
Asking for a friend of mine. It has 91000 on it. He uses it for his business. He also considered MaxLife. I think either is a good idea myself.
I wonder how long the turbos will hold up. Im sure its costly to replace them.
T5 = 10w30 YES
T6 = 5w-40 NO
Why not MC 5w30, like what is recommended?
T6 = 5w-40 NO
Why not MC 5w30, like what is recommended?
Its boring i guess. Idk its not my truck.
Why not 5w-40 tho? i thought it was good for the turbos and good for colder starting?
I'd have no problem running the synthetic 5w-40 T6 in the out-of-warranty turbo. Considering all the positive UOAs from other turbo motors, T6 would be my preference.
Would the T5 be ok being a 30? i told him the T5 might not do as well on initial startup but idk.
I see.
How do you people have these things on hand???
You can't just put up charts and expect everyone to understand, explain why so the younger posters can gain some knowledge. Otherwise the question will keep being asked.
Yea, what he said! I still need an answer. I have one vote for T5 and one for T6.
RT6 5w-40 is thicker at -2F than 10w30 conventional, as I learned last week!
I'd run the T5 year round or T6 in the summer if it gets too hot there.
I'd run the T5 year round or T6 in the summer if it gets too hot there.
T5 is a blend.
JHZR2
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What is the specification for the engine originally.
Forget the stupid "its all CAFE" argument. What's the spec?
Coming from driving >>200k mile turbos (original), Im not concerned. What evidence do you have ecoboost turbos will be an issue, and what evidence do you have that a different oil will have any influence on that longevity???
Forget the stupid "its all CAFE" argument. What's the spec?
Coming from driving >>200k mile turbos (original), Im not concerned. What evidence do you have ecoboost turbos will be an issue, and what evidence do you have that a different oil will have any influence on that longevity???
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Originally Posted By: Miller88
RT6 5w-40 is thicker at -2F than 10w30 conventional, as I learned last week!
I'd run the T5 year round or T6 in the summer if it gets too hot there.
It is thinner at -25C, which is where the CCS for a 10w-xx is measured. The previous chart shows a CCS of 6,000cP at -25C. The 5w-40 had the same CCS of 6,000cP, but at -30C. So at -25C, it would have been about 3,000cP.
RT6 5w-40 is thicker at -2F than 10w30 conventional, as I learned last week!
I'd run the T5 year round or T6 in the summer if it gets too hot there.
It is thinner at -25C, which is where the CCS for a 10w-xx is measured. The previous chart shows a CCS of 6,000cP at -25C. The 5w-40 had the same CCS of 6,000cP, but at -30C. So at -25C, it would have been about 3,000cP.
Originally Posted By: JHZR2
What is the specification for the engine originally.
Forget the stupid "its all CAFE" argument. What's the spec?
Coming from driving >>200k mile turbos (original), Im not concerned. What evidence do you have ecoboost turbos will be an issue, and what evidence do you have that a different oil will have any influence on that longevity???
5w30 is spec'd for all Ecoboost engines except the 1.6.
The turbos are also coolant cooled now. So the oil passages won't plug up with sludged oil from oil cooling.
The turbos should last a good long time.
What is the specification for the engine originally.
Forget the stupid "its all CAFE" argument. What's the spec?
Coming from driving >>200k mile turbos (original), Im not concerned. What evidence do you have ecoboost turbos will be an issue, and what evidence do you have that a different oil will have any influence on that longevity???
5w30 is spec'd for all Ecoboost engines except the 1.6.
The turbos are also coolant cooled now. So the oil passages won't plug up with sludged oil from oil cooling.
The turbos should last a good long time.
I dont have any evidence. Im just wondering considering turbos arent fords "thing" and i know that turbos have ball bearings which can "fail" after high temps and high mileage. And diesel oils sometimes are considered as a good substitute for High mileage oils.
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