AMSOIL....beats the sh1t out of Mobil 1 Synthetic??

Hamburgerpimp

Diamond Member
Aug 15, 2000
7,464
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Or so I have read. They were the FIRST company to produce fully synthetic oil many years ago. Anybody use Amsoil or have any opinion on it.
 

Soybomb

Diamond Member
Jun 30, 2000
9,506
2
81
Diminishing returns for amsoil, even if it is a little better, its probably not worth the cost. Enough high end sports cars require/recommend mobil one, while I've never seen a single one say amsoil, that I feel comfortable with it.
 

notfred

Lifer
Feb 12, 2001
38,241
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How does it beat Mobil 1? Really, I'd like to see some analysis of wear on an engine after 50,000 miles of either oil, changed every 5,000 miles, and see if there's a significant difference.
 

Hamburgerpimp

Diamond Member
Aug 15, 2000
7,464
1
76
I am in no way endorsing this product, this is just what I read:

Four ball wear test (ASTM D4172) 40Kg load pressure at 150° C, 1800 rpm for 1 hour

Amsoil 0W-30: 0.373 mm wear
Mobil 1 5W-30: 0.589 mm wear
Mobil 1 0W-30: 0.607 mm wear
 

notfred

Lifer
Feb 12, 2001
38,241
4
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Originally posted by: Hamburgerpimp
I am in no way endorsing this product, this is just what I read:

Four ball wear test (ASTM D4172) 40Kg load pressure at 150° C, 1800 rpm for 1 hour

Amsoil 0W-30: 0.373 mm wear
Mobil 1 5W-30: 0.589 mm wear
Mobil 1 0W-30: 0.607 mm wear

Who performed the test? Do they have any real world tests, or at least tests on actual engines?
 

Hamburgerpimp

Diamond Member
Aug 15, 2000
7,464
1
76
I don't know, I'm still reading. Apparently, Amsoil is a much smaller company than Mobil and they don't want to fork the millions of dollars in a controlled test. And Mobil won't do it, because they know Amsoil is a better synthetic.
 

DanTMWTMP

Lifer
Oct 7, 2001
15,906
13
81
aha remember those imfomercials on those oils that can "move" to the source of heat......and they say they're far superior than mobile 1....


Diminishing returns for amsoil, even if it is a little better, its probably not worth the cost. Enough high end sports cars require/recommend mobil one, while I've never seen a single one say amsoil, that I feel comfortable with it.

well, there ya go...
 

RU482

Lifer
Apr 9, 2000
12,689
3
81
Originally posted by: notfred
Originally posted by: Hamburgerpimp
I am in no way endorsing this product, this is just what I read:

Four ball wear test (ASTM D4172) 40Kg load pressure at 150° C, 1800 rpm for 1 hour

Amsoil 0W-30: 0.373 mm wear
Mobil 1 5W-30: 0.589 mm wear
Mobil 1 0W-30: 0.607 mm wear

Who performed the test? Do they have any real world tests, or at least tests on actual engines?

1 sample per oil....that's not even valid, you need way more samples thatn that before you can preach that you are better. They are Marketing for fools

 

notfred

Lifer
Feb 12, 2001
38,241
4
0
Originally posted by: Hamburgerpimp
I don't know, I'm still reading. Apparently, Amsoil is a much smaller company than Mobil and they don't want to fork the millions of dollars in a controlled test. And Mobil won't do it, because they know Amsoil is a better synthetic.

Well, the test you posted was highly unrealistic. At those rates of wear, the bearings in any real engine would be completely gone after 500 miles.
 

Hamburgerpimp

Diamond Member
Aug 15, 2000
7,464
1
76
Diminishing returns for amsoil, even if it is a little better, its probably not worth the cost. Enough high end sports cars require/recommend mobil one, while I've never seen a single one say amsoil, that I feel comfortable with it.

And how much money you think Mobil gives Mercedes, Porsche, etc? I'll give you a hint, it's not chump change.
 

Hamburgerpimp

Diamond Member
Aug 15, 2000
7,464
1
76
Well, the test you posted was highly unrealistic. At those rates of wear, the bearings in any real engine would be completely gone after 500 miles.

I didn't post it, somebody else did. I just reposted it. I'm not endorsing it. Just seeing if anybody uses it, etc.
 

notfred

Lifer
Feb 12, 2001
38,241
4
0
Originally posted by: Hamburgerpimp
Well, the test you posted was highly unrealistic. At those rates of wear, the bearings in any real engine would be completely gone after 500 miles.

I didn't post it, somebody else did. I just reposted it. I'm not endorsing it. Just seeing if anybody uses it, etc.

You were the first one to psot it in this thread, so as far as I'm concerned, you posted it :) I realize you didn't perform the test yourself.

I don't use Amsoil. Too expensive and hard to find. Actually, I doubt that any synthetic oil is worth the price, as long as you perform your oil changes on time.
 

B00ne

Platinum Member
May 21, 2001
2,168
1
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Originally posted by: notfred
Originally posted by: Hamburgerpimp
I don't know, I'm still reading. Apparently, Amsoil is a much smaller company than Mobil and they don't want to fork the millions of dollars in a controlled test. And Mobil won't do it, because they know Amsoil is a better synthetic.

Well, the test you posted was highly unrealistic. At those rates of wear, the bearings in any real engine would be completely gone after 500 miles.

Duh' thats the point of such tests, that u dont have to wait for years to get the results. And of course the test doesnt really say anything about the performance of the oil in the engine especially not without stating test conditions. But tribo-tests on actual parts are difficult to do, very costly and take a long time

 

SuperSix

Elite Member
Oct 9, 1999
9,872
2
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If Amsoil was so good, the auto manufacturers would perform the test. Or maybe they have, and that's why they aren't recommended by any auto manufacturers. If Amsoil really wanted to go with full-bore testing, they could secure funds for it, and if successful, the rewards of being able to say they are better than Mobil1 would get their investment back tenfold. Or.. maybe they have, and know an independant, credible lad would not find it better.

I don't use synthetic, because my cars had too many miles on them when I got them to switch, but if I got a new/very low mile used car I would use synthetic, Mobil1. I feel much more secure in Mobil's R&D abilities and years of petroleum experience than Amsoil's. (Yes, I know Mobil1 isn't petroleum based)
 

tcsenter

Lifer
Sep 7, 2001
18,707
430
126
Or so I have read. They were the FIRST company to produce fully synthetic oil many years ago. They'll even test your used oil to see how your engine is wearing! Anybody use Amsoil or have any opinion on it.
Amsoil formulated and marketed the first "API classified" synthetic motor oil. Amsoil was not the first to formulate or even market synthetic lubricants.

Amsoil is among the best synthetic motor oils available at any cost, and yes it is superior to Mobil 1. But that doesn't mean it will translate into something 'better' in your crankcase. Common household bleach will beat most shelf oils in some bearing-pressure or friction tests, but you wouldn't use Clorox in your engine based on that result.


 

amdskip

Lifer
Jan 6, 2001
22,530
13
81
We use amsoil and I'm switching my car over to it here shortly. We use it in our dragsters rearend and tranny. In the tranny, it significantly helps keeping it cool.
 

BillGates

Diamond Member
Nov 30, 2001
7,388
2
81
I put AMSOil in my bike after using Mobil 1 before that and must say that I immediately noticed much notchier shifting, nowhere near as smooth as Mobil 1 was. I ride all the time so I could definitely tell the difference. I'm never using AMSOil again - and the sad part is that it's more expensive than Mobil 1.

Why doesn't Dodge put AMSOil in every Viper they make?
 

StageLeft

No Lifer
Sep 29, 2000
70,150
5
0
Yes I do believe it's better based on what I've heard. Thing is just because it's better doesn't mean it's worth the money. Mobil 1 is factory fill in corvettes and vipers. I really doubt the slight advantage to amsoil is worth it most/all of the time.
 

db

Lifer
Dec 6, 1999
10,575
292
126
"Four ball wear test (ASTM D4172) 40Kg load pressure at 150° C, 1800 rpm for 1 hour"



So, the test was done by two guys?
 

brxndxn

Diamond Member
Apr 3, 2001
8,475
0
76
My 88' Civic with 240 hp worth of spoilers, exhaust tips, stickers, and fake NOS tank with a subwoofer in it has been running much better since I switched to AMSOIL. Now, I get in the low 11's where before I used to get in the low 11's.

Now, I can smoke any Mustang, Corvette, or even Viper. My 4 cylinder race car rox.