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Author Topic: Oil  (Read 16719 times)

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NoMad

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Re: Oil
« Reply #30 on: April 09, 2019, 09:20:15 pm »
That is outside my relm of experience. I went ahead and did Mobil 1 and called it a day.

GTRS Fiero

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Re: Oil
« Reply #31 on: April 09, 2019, 09:21:29 pm »
Me, too.  I'm trying to see what those who have been using the Rotella have done.

Fierofool

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Re: Oil
« Reply #32 on: April 09, 2019, 11:11:54 pm »
I have to do an oil change soon.  I'll check to see if the new oil has the ZDDP.  May also do a search through Shell Oil. 

What is the S rating? 
There are three kinds of men:

1.    The ones that learn by reading.
2.    The few who learn by observation.
3.    The rest of them have to pee on the electric fence and find out for themselves.    Will Rogers

Fierofool

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Re: Oil
« Reply #33 on: April 09, 2019, 11:59:13 pm »
The gas truck version is a synthetic and the maximum viscosity is 5 w 30.  Personally, I don't feel comfortable using that on a high mileage engine. 

I read lots of reviews of the T4 and it's well thought of in the Jeep Inline Six 4.0 liter crowd.  Some reported the internals of the engine was still clean after considerable mileage.  The general consensus was that the older engines benefitted from the zinc in the oil to reduce wear. 
There are three kinds of men:

1.    The ones that learn by reading.
2.    The few who learn by observation.
3.    The rest of them have to pee on the electric fence and find out for themselves.    Will Rogers