Tell me about Engine oils????????????

[Ole Don]

I drive my old car all over the country. I buy Shell Rotella oil because I can buy it all over the country. 15W40 in summer, and 10W30 in winter. Nine bucks a gallon.
  It is on the list above.

[johnneilson]

Don,

Beware of the Rotella oil with the yellow banner on the label, it is the reformulated for emmissions oil.

I use it in my '50 Ford 8n tractor.

John

[RansomT]

Don,

Beware of the Rotella oil with the yellow banner on the label, it is the reformulated for emmissions oil.

I use it in my '50 Ford 8n tractor.

John

My understanding is that "all" Rottella oil has recently been reformulated.

[johnneilson]

yes, all motor oils intended for US highway use have been refomulated.

I was exposed to Rotella back in the 70's, used it for everything including two / premix if nothing else available.

If I am not mistaken, the chart/listing of motor oils eariler in this post was pre'07 emissions product.

It would be interesting to see the difference now that the reduced levels.

John

[Constant Kinetics]

When i bought a new cam from Comp Cams, they would not honor the warratny unless it was broken in with Rottella 15w 40. Unlike a specific break in oil, it has lasted for 4500 miles in a couple of my work trucks. Amsoil is always a good option, and their web site can point you to the right product for your application.