[rpoz-29]

Anyone here have any experience with Amsoil products? I'm a little curious about their PS fluid, and motor oil.

[Pilot]

I completely agree Rob, but I really use those to determine what I feel comfortable putting in my car, and then turning around and getting an oil analysis done on it to see how it works.

Oh and Kevin, Amsoil was the first synthetic even though I know M1 has been doing it a long time. I also believe M1 uses a petroleum base-stock in their synthetic oils. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/tongue.gif)

[robz71lm7]

I completely agree Rob, but I really use those to determine what I feel comfortable putting in my car, and then turning around and getting an oil analysis done on it to see how it works.

Oh and Kevin, Amsoil was the first synthetic even though I know M1 has been doing it a long time. I also believe M1 uses a petroleum base-stock in their synthetic oils. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/tongue.gif)

Actually, Amsoil has also played the group III base stock "synthetic" labeling game in some of their line. Mobil as hated as it is by some is just about the only over the counter oil that hasn't done so. Mobil has always been group IV unless something has changed recently. I know at one point it was a pao/ester (group V) blend but I beleive that has changed.


I really don't care though, the german made (not us) Castrol in my car works well. It was analyzed by Terry Dyson who has extensive experience with racing engines and has worked with NASCAR teams IIRC. (You can opt for Terry through Blackstone Labs). Unfortunately I lost the report he did on my car. But he approved of me running the oil for approx 200 autocross runs plus a certain amount of street mileage per change. Mobil 1 didn't perform awfully, but it didn't reach this level.

[Spooner]

Rob,

Are you using the green or the gold German stuff?

Edit: Why this is related: Castrol switched formulations a while ago on its German 0w30 and people are still debating whether the new (gold) is better than the old (green colored) stuff. If it's not as good, then it'll be time to switch to something else, be it Amsoil, Redline or another...

Pimpmaro: What version of Amsoil would you recommend, given that our cars seem to run best with a 40-weight or near 40-weight.

-John

This post has been edited by Spooner: Jun 8 2006, 02:33 PM

[robz71lm7]

Rob,

Are you using the green or the gold German stuff?

Edit: Why this is related: Castrol switched formulations a while ago on its German 0w30 and people are still debating whether the new (gold) is better than the old (green colored) stuff. If it's not as good, then it'll be time to switch to something else, be it Amsoil, Redline or another...

Pimpmaro: What version of Amsoil would you recommend, given that our cars seem to run best with a 40-weight or near 40-weight.

-John

My analysis was of the old green German stuff. I just switched to gold. I've seen similar results from the gold formula so I don't see anything wrong with running it. I may take an early sample this summer to check it back out.