I would of put any of the other 4 options before Rotella
2025-05-28 17:05:42
63
arysautoservice :
I am a strong believer in Schaefer’s
2025-05-29 02:17:35
102
Justin Boggs :
Schaffers didn’t make the list?
2025-05-28 13:28:57
33
ab_diesel94 :
Schaffers or nothing Amsoil not even in the same ballpark. It cost but the oil analysis don’t lie once you start running it.
2025-06-07 01:06:59
15
Mr.Cornbread :
Royal Purple Duralec
2025-05-28 10:28:06
32
Scott :
I run T4 in my fleet of Mack trucks, I have run a 15L Cummins over 2 million miles on T4, I run T6 in my Duramax and diesel farm tractors.
2025-07-01 18:03:47
0
jeffhooper255 :
Didn’t Ford take Rotella off their approved list due to wear addtitivrs removed to pass environmental concerns?
2025-05-28 19:22:39
5
twinoaksrepair :
Rotella T4/T5/T6 is very overrated. They are not bad oils, but not that great with respect to their price point. Delvac 1300 isnt what it used to be. Try Mystik/Citgo 700 10W-30 or 15W-40 CK4 oils.
2025-05-28 22:52:25
9
Captain_Black_Stack :
My Mom has ran her 2009 Duramax over 1,000,000 miles with Rotella T6. Still hasn't been apart @1.3 million miles currently.
2025-05-28 17:11:54
1
Anby08 :
rotella is a good value oil but it definitely isn't the best. it's constantly outperformed
2025-05-29 06:13:42
14
Luke VT :
T6 5w40 is what i run in the 7.3 power smokems and a motorcraft filter
2025-05-28 10:31:52
7
R Mendoza :
How about T6 5w-40 in a 6.0L lq4?
2025-05-28 15:01:39
0
user1673172432615 :
Chevron Delo by Far used in most Fleets 50 k and longer intervals 30 Years in Fleet testing comes out on Top
2025-05-29 05:59:23
13
johnb_925 :
Schaeffers? I run it in my PSD 6.7. Oil test results are great at 5k change intervals. I’ve run Rotella T6 in my old PSD 6.0 and has been great for 350k and counting.
2025-05-28 21:56:54
25
Kevin_20 :
I run Cat 15w-40 and the Cat oil filter on my cummins
2025-05-28 17:06:40
3
Kaden Thompson :
I run t4 in my Chevy 5.3 do you think that is bad
2025-05-27 23:11:24
1
Luke Carroll :
Lucas full synthetic CK-4
2025-05-29 03:33:25
0
m_routhier :
What about Cat oils? They make full synthetic 0w-40 5w-30 and 10w-30. As well as the conventionals. What’s your thought?
2025-06-27 01:12:00
0
M.P.A.D :
Schaeffers should definitely be on this list
2025-05-29 02:09:44
1
unnamedthing1776 :
I forgot what company told me this but I bought injectors from them for my 6.0 power stroke, they said they won't warranty them if I use rotella t6, apparently it destroys seals.
2025-05-30 02:17:06
1
Darkfire :
Schaeffer's? Lot of people around me really recommend it for every oil you can think of
2025-05-28 19:33:19
0
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