Was in Tractor Supply today and checked out their supply of HDEO and low and behold the "SN" designation is back on the Rotella T4 and T5 15w-40 gallon jugs! I noticed the "SN" disappeared from the Blue and white jug Rotella when the Rotella Truck Oil in the red bottles was being marketed. Since that line of oils apparently failed, it looks like Shell reformulated the original Rotella and made some of the grades "All Fleet" for gas and diesel engines.
Rotella T4 and T6 Are Back "SN" Rated
- Thread starter Stumpy
- Start date
I noticed the T5 Syn Blend 10w-30 was not marked "SN". Generally from what I have seen, if it is marked CK-4, the oil will not be marked "SN".Shame they didn’t try to make rotella T4 10w30 SN
So, how is rotella I see CK-4/SN?
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- Dec 30, 2022
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Noticed it last summer on valvoline 15w40 and rotElla t4 15w-40. Amsoil 10w-30 is also sn rated
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hopefully still has that big ad pack with the phosphorous for my 6.7 psd
The 10W-30? I've never seen an SN one. Not recently anyway.
Negative, I asked how rotella T4 15w40 is Ck-4/SN and the rotella T4 10w30 is NOT SN rated. That simple.
I don't know.
Here are links to two Rotella technical data sheets from Shell (pdf).
Shell Rotella T4 15W40 synblend is API CK-4 and SN (Date 22/5/2024).
Shell Rotella T4 10W30 synblend is API CK-4 (Date 5/6/2024).
I wouldn't have any problems using either in an older car. But I suspect that most motorcycle users will only use the 15W40 in their bikes, and this is the market Shell are going for, as it has a bit of a following in that application. Notice too the 15W40 is also JASO MA, MA2 rated for wet clutch bikes, while the 10W30 doesn't carry this.
Edit: Both the 10W30 and 15W40 say in their documents "Hard working diesel and gasoline engines. Suitable for ....... SUVs, mini-vans and motorcycles."
Shell Rotella T4 15W40 synblend is API CK-4 and SN (Date 22/5/2024).
Shell Rotella T4 10W30 synblend is API CK-4 (Date 5/6/2024).
I wouldn't have any problems using either in an older car. But I suspect that most motorcycle users will only use the 15W40 in their bikes, and this is the market Shell are going for, as it has a bit of a following in that application. Notice too the 15W40 is also JASO MA, MA2 rated for wet clutch bikes, while the 10W30 doesn't carry this.
Edit: Both the 10W30 and 15W40 say in their documents "Hard working diesel and gasoline engines. Suitable for ....... SUVs, mini-vans and motorcycles."
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