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Old 05-08-2018, 10:03   #16
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

I have a Beta 60 and Shell Rotella 15W40 is my go-to at 43N. I would only consider a different weight if I went to high latitudes (not yet).
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Old 05-08-2018, 10:10   #17
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

I use T4 15w40, mostly because where I am its available just about everywhere. Straight weight oils seem to be much harder to find in the diesel spec. took me forever to find 2 litres of SAE 30 to put in my transmission.
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Old 05-08-2018, 10:30   #18
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

I get my oil off Amazon, free delivery to the doorstep!
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Old 05-08-2018, 11:56   #19
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

15W40 for engine and 30 for tranny
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Old 05-08-2018, 18:27   #20
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

Quote:
Originally Posted by xxhat View Post
Would appreciate any comments on which of the shell rotella diesel oils do I
use for my Kubota betamarine 14 engine.


Manufacturer recommends CF grade but that is now OBSOLETE.


Both above oils have CF-4 grade.
Don't sweat it too much, either will do. But if they say 30 for tranny go with that.
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Old 06-08-2018, 04:47   #21
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

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I get my oil off Amazon, free delivery to the doorstep!
Walmart delivers too and free over 50. I know I'm older than that.
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Old 06-08-2018, 10:02   #22
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Re: which one shell rotella T1 SAE 30 OR T4 15W40 diesel oil ?

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Originally Posted by bigreelsc View Post
We are located in Florida and have used Rotella 40 in all our engines Detroits and Phasor generator and the tech says that they display minimal wear for their age.
You are following the the Detroit advice for the 2 cycle engines, but most other engines call for 30 WT or multiweight. I would use an oil that the the spec called for by the mfg. If that spec is no longer available check with rotella for their replacement recommendation.
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