I heard that AMS oil is 100% synthetic whereas Mobil 1 is not (full synthetic). Motul also has 100% synthetic engine oil. I have been using Mobil 1. Wondering if I should switch to AMS? I suspect that this would clean the engine better than full synthetic? Is AMS oil available at Autozone or pla…

I use Mobil 1 and it is full synthetic. The thing about Amsoil is that it is sold by dealers like Amway. Maybe it’s OK stuff but the marketing plan adds way more mark-up than is justified. Maybe that has changed some now, I dunno, but still just a lot of hype.

the heavily advertised aspect of Amsoil is the promise of longer oil change intervals. it may be important to truckers with high oil volume in the system, but makes not much sense in the small engines. you will not get any noticeable difference when using AMS and I would not recommend buying into …

I heard otherwise . . . and different terminology, at that Mobil 1 is fully synthetic, no doubt about it It’s group 4 Whereas some store brand synthetics . . . and Castrol syntec . . . are group 3, which are considered by some/many to not be true synthetic oils [image] sciconf: Is AMS oil av…

Mobil 1 has extended performance products that have a larger amount of the additive package to prevent oil breakdown much longer than the normal performance Mobil 1.

yes, and I would use that M1 type if I needed extended intervals, as it is something available in the local store still, OP brought up a question about Amsoil, and to the best of my knowledge, the extended change intervals was the most advertised “feature” of it

If I may be so bold . . . Why should I use Amsoil . . . ? It’s not easy to obtain . . . I can get Mobil 1 almost anywhere It’s not better than Mobil 1 And it’s more expensive than Mobil 1 I just don’t see a point in using a hard to obtain oil that isn’t actually better than what I can easily g…

There are Amsoil retail partners but they’re mostly small shops (at least around here) https://www.amsoil.com/locator/map.aspx

What I heard was Mobil 1 (M!) is Group 3, hence Full Synthetic AMS is Group 4 and hence 100% Synthetic. M1 base oil uses derivatives of Crude oil - AMS is 100% man made. AMS will ship it to your door.

Amsoil is more expensive because of its inflated sales cost structure. I’ve not seen evidence it is better than Mobil-1. For years Amsoil was not API certified. I don’t know if that changed recently. Their websites have cleverly worded language about API certification. Are there vehicles that “…

I think you’re splitting hairs debating Amsoil vs. Mobil 1. This is a “bragging rights” discussion for car fanboys. The truth is that unless you’re running in an extremely rare group of high performance car types…it doesn’t matter. Most of us could wreck our cars tomorrow, and the last question any…

Amsoil Vs Mobil 1

Maintenance/Repairs

Mustangman September 6, 2020, 1:48am 10

Amsoil is fine stuff. Better than Mobil 1, no. More expensive, yes.

The only place I see it on the shelf is at motorcycle shops… not Harley shops though.

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Amsoil Vs Mobil 1

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