Shell Rotella? (9 Viewers)

[FJ60 butter]

Hello, It's about that time to do an oil change on my 1983 FJ60. I've been hearing good things about Shell Rotella T4 10w-30. Considering that this oil has Zinc in it which is good for protect but is bad for your CAT. Should I use it? Would any of you guys recommend this oil? I'd love the help...

Thank you

 

[ntdb]

I've been using Rotella T4 15w-40 for a couple of years and my 2F seems to like it just fine. I always add a bottle of Risolone Zinc supplement with each oil change.

Unfortunately it looks like Rotella T4 is getting really hard to find... something about a factory burning to the ground?

 

[FJ60 butter]

I've been using Rotella T4 15w-40 for a couple of years and my 2F seems to like it just fine. I always add a bottle of Risolone Zinc supplement with each oil change.

Unfortunately it looks like Rotella T4 is getting really hard to find... something about a factory burning to the ground?

It has been hard to find from what I hear too. But I have a O'reillys that have a bunch of it. I live in colder climates so I'll go with a 10w-30. Thank you for your advice

 

[OSS]

Good ole Autozone has a good easy to digest write up about Zinc in oil.

https://www.autozone.com/diy/motor-oil/zinc-additives-in-motor-oil-and-how-they-help

and yes— ZDDP (zinc) shortens the life of the catalytic converter - that’s why it was removed from motor oil.

So wear out your engine faster not using ZDDP or wear out your CAT faster using it.

 

[SteveH]

T4 is slightly easier to find that T6, which is totally impossible to find. I doubt your cat converter is doing much catalytically after all these years, and it will still work thermally to burn up HC, so I would run whatever oil you like.

 

[YooperCruiser]

This is a great article and list showing zinc, phos, ZDDP amounts in various oils. It was written in 2015 so don't know if anything's changed since then.

What oil brands offer the best protection ***Good read*** - https://www.sccoa.com/forums/threads/what-oil-brands-offer-the-best-protection-good-read.136304/

 

[HemiAlex]

Don’t overlook the mobil 1 15w50 synthetic.

Mobil 1 15W50

Grabbed some to try at the track later this year.

bobistheoilguy.com

I ran it for 7,000 over the last year. It’s commonly available and well documented. My 2F didn’t leak any more with it, and my front main seal is dripping but it doesn’t hit the ground. So that’s not really a leak.