Shell Rotella T4???

[Kidder522]

Hey everyone. Saw this post on the Facebook moomba page. https://uploads.tapatalk-cdn.com/20200630/21072575945dab28f7943e3bfe3b196b.jpg

Can anyone chime in on the information that indicates that Rotella T4 is not recommended anymore?


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[VA LSV]

I've been using Rotella T6 in mine for many years. T4 should be just fine.

Found this online.

Shell Rotella T4 NG Plus 15W-40 meets the specifications for natural gas, diesel and gasoline engines, making it a true multi-vehicle engine oil that will help fleets consolidate the number of engine oils they need in their shop,” said Megan Pino, Shell Rotella Global Brand Manager.Nov 19, 2019

[996scott]

i used T4 for many years up until last fall and then switched to T6.

[Kidder522]

Do you still use the 15w40 weight? Or do you use the 5w30 weight?

[MJHSupra]

If you search the net and find a forum on this, it makes my head spin. I've also used it for many years on my 2007 and I know the bottle changed the API standards a little while back.

I thought the standards changed, not how they produce Shell T4 oil?
Thus if was OK to use the past, why would be be 'bad' now - besides not meeting a current gov't standard?

And from talking to mechanics, viscosity is more important.

I not an oil expert by any means. I know there are some folks on this board in that industry.

[996scott]

Do you still use the 15w40 weight? Or do you use the 5w30 weight?

i run the 15w-40