[rpoz-29]

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

[robz71lm7]

From what I can dig up evidently Redline is a PAO/Ester blend, but I nor can anyone else on bobistheoilguy determine how much is ester and how much is pao.

I took a little bit of time to read up on GC today and it looks like good stuff but I've grown up on old school oil ways (10w40 summer, 10w30 winter, go up viscosity on an old motor, etc). My dad scoffed at the idea when I put the recommended 5w30 (I used plain old Castrol) in it for the last oil change in the tow van, "That's way too light!".

Would GC work well in a tow rig (Ford 4.6L E-150)? Everything I've read points that it should be fine, but I figure asking the gurus can't hurt.

I'm not a guru by any mean but:

With a quality oil like GC the 0w30 spread is no big deal. It's actually almost a 40 weight at operating temp IIRC. It would probably be a fine oil for that application. Where you get into trouble with a large spread like 5w30 or 10w40 with conventional oils is you have to add a lot of viscosity index improvers. These oils are more prone to thinning out with use unlike a 10w30. You may start out with 5w30 and end up with 5w20.

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