Your thoughts on oil - Shell Rotella
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Trailering
Joined: Jul 2017
Posts: 15
Likes: 1
Your thoughts on oil - Shell Rotella
What do you use in your 6.7? Rotella T4 or T5? When do you change oil?
I drive local in town, seldom loaded except when we go camping and I pull a 5th wheel rv. I have about 145K on the truck (2012 F-350)
New claims by Shell say 75,000 mile oil change on T5...I'm skeptical, maybe on a dyno stand engine, but in practical use??
I've always been a fan of Rotella. In the gas field has we had good luck using Rotella with field compressors running Cats and Whites.
Thanks for your thoughts!
Ed
Residing in North Louisiana
I drive local in town, seldom loaded except when we go camping and I pull a 5th wheel rv. I have about 145K on the truck (2012 F-350)
New claims by Shell say 75,000 mile oil change on T5...I'm skeptical, maybe on a dyno stand engine, but in practical use??
I've always been a fan of Rotella. In the gas field has we had good luck using Rotella with field compressors running Cats and Whites.
Thanks for your thoughts!
Ed
Residing in North Louisiana
Mountain Pass
Joined: Jul 2018
Posts: 190
Likes: 91
T4 meets the spec and is an acceptable oil. Millions of miles have been run on T4.
T5 ingredient list actually looks better then either T4 or T6, with both moly and boron, and is the clear "on paper" winner among the 3.
The synthetic portion is PurePlus, Shell's natural gas to liquid (GTL) base oil same as Pennzoil passenger car oils. Fine stuff.
T6 being synthetic will stand up to high heat and load, and have easier cranking in cold if the 5w40 flavor is chosen.
It's been said the base oil is Shell's XHVI base made from slack wax. It's clean, has a high natural VI so it stays in grade without much viscosity improver additive.
You won't be "wrong" with any of them, but you could be slightly more "right" with T6 under extreme conditions that would include cold, heat, or extended drains.
T5 would be my choice of the three just because of the add pack.
T5 15w40 is hard to beat if you dig deep into the specs and what is in it.
75,000 miles in OTR trucks is certainly possible with analysis, but the Shell site does say "up to 50,000" miles for T5.
T5 ingredient list actually looks better then either T4 or T6, with both moly and boron, and is the clear "on paper" winner among the 3.
The synthetic portion is PurePlus, Shell's natural gas to liquid (GTL) base oil same as Pennzoil passenger car oils. Fine stuff.
T6 being synthetic will stand up to high heat and load, and have easier cranking in cold if the 5w40 flavor is chosen.
It's been said the base oil is Shell's XHVI base made from slack wax. It's clean, has a high natural VI so it stays in grade without much viscosity improver additive.
You won't be "wrong" with any of them, but you could be slightly more "right" with T6 under extreme conditions that would include cold, heat, or extended drains.
T5 would be my choice of the three just because of the add pack.
T5 15w40 is hard to beat if you dig deep into the specs and what is in it.
75,000 miles in OTR trucks is certainly possible with analysis, but the Shell site does say "up to 50,000" miles for T5.
Lead Driver
Joined: May 2021
Posts: 5,820
Likes: 3,453
From: Uh oh, CA
I started using Rotella T6 5W40 at 5k miles and change it at every 5k miles. Almost all of my fill ups are with B20 (it's the only option at the station in town that I trust most). I mostly city drive with lots of stop and go, and tow my 6000 lb camper often (except during the winter). I monitor my DPF% and allow regens to fully complete once they hit about 95%. I also send in a sample to Blackstone Labs at each oil change. It all looks great. The last sample I sent in I even added a TBN, which showed that the oil was good and they estimated that I probably could have went out to 7000 or a little longer and still been fine... I will still continue to do 5k mile oil changes though!
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From: Frederick, MD
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Cross-Country
Joined: May 2022
Posts: 60
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I run only T6 5W-40
Interval 5000-7500 depending on towing mileage
Ive got 235K and 287K on my 6.7's, no blowby and they still run as strong as the day I got em
Interval 5000-7500 depending on towing mileage
Ive got 235K and 287K on my 6.7's, no blowby and they still run as strong as the day I got em
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Al
Lead Driver
Joined: May 2021
Posts: 5,820
Likes: 3,453
From: Uh oh, CA
Not that I was unhappy or concerned, but this thread only makes me feel better about using T6! When I was trying to decide what flavor oil I was going to use when I got my truck, many of the threads seemed to praise T6 and is what led me chose to use it. I plan to continue using it, unless of course it becomes unavailable.
FTE Legend
Joined: Mar 2017
Posts: 31,835
Likes: 9,156
From: Western NY
T4 meets the spec and is an acceptable oil. Millions of miles have been run on T4.
T5 ingredient list actually looks better then either T4 or T6, with both moly and boron, and is the clear "on paper" winner among the 3.
The synthetic portion is PurePlus, Shell's natural gas to liquid (GTL) base oil same as Pennzoil passenger car oils. Fine stuff.
T6 being synthetic will stand up to high heat and load, and have easier cranking in cold if the 5w40 flavor is chosen.
It's been said the base oil is Shell's XHVI base made from slack wax. It's clean, has a high natural VI so it stays in grade without much viscosity improver additive.
You won't be "wrong" with any of them, but you could be slightly more "right" with T6 under extreme conditions that would include cold, heat, or extended drains.
T5 would be my choice of the three just because of the add pack.
T5 15w40 is hard to beat if you dig deep into the specs and what is in it.
75,000 miles in OTR trucks is certainly possible with analysis, but the Shell site does say "up to 50,000" miles for T5.
T5 ingredient list actually looks better then either T4 or T6, with both moly and boron, and is the clear "on paper" winner among the 3.
The synthetic portion is PurePlus, Shell's natural gas to liquid (GTL) base oil same as Pennzoil passenger car oils. Fine stuff.
T6 being synthetic will stand up to high heat and load, and have easier cranking in cold if the 5w40 flavor is chosen.
It's been said the base oil is Shell's XHVI base made from slack wax. It's clean, has a high natural VI so it stays in grade without much viscosity improver additive.
You won't be "wrong" with any of them, but you could be slightly more "right" with T6 under extreme conditions that would include cold, heat, or extended drains.
T5 would be my choice of the three just because of the add pack.
T5 15w40 is hard to beat if you dig deep into the specs and what is in it.
75,000 miles in OTR trucks is certainly possible with analysis, but the Shell site does say "up to 50,000" miles for T5.