It’s literally marked on their signature series that it’s group 4 with group 5. It’s literally been proven. They are the best oil in the us.
2026-11-09 02:20:37
8
Fort Bragg Diesel :
Hotshot blue diamond?
2026-11-10 02:19:33
2
TransamLs :
Redline
2026-11-09 22:13:57
1
user2488718195512. ap3 :
I lived in Superior and loaded trailers at Amsoil......when they ran the hose out a office window......load half the trailer and go weigh at the scrap yard and come back to load the other tank........I've been there 20 plus times loading trailers.....I've seen what they mix and how they did it.......will never use Amsoil........back in the 90s if brake clean their grease tubes....it shell under their label
2026-11-08 20:51:22
10
VMPMoto :
2026-11-09 22:14:47
1
Zac :
So Aaron is your oil only a 15-40? I’d love to run it in my 24 model ram with a 6.7. I can run 15-40 I do believe but I’ve been running 5-40 in it. I’d love to give yours a try soon
2026-11-08 23:47:24
1
Mr.G :
Only one problem it’s most expensive.
2026-11-08 21:24:29
6
The Unfamous Chris :
Mobil 1 extended is group IV base oil
2026-11-09 00:36:00
6
LAND BIGHTS :
regardless if yours is the best watching ams oil go against penz and and the others was impressive. I would rather purchase your oil and support a family company.
2026-11-08 22:51:33
6
user1466338861337 :
Penn grade is good
2026-11-10 04:11:52
1
boostedham :
There’s a video on YouTube that shows 8 brands. You maybe right but wrong. Right because most of the brands shown are not from the United states but wrong because they are imported so you are not the only.
2026-11-09 13:37:54
2
lamekiwi24 :
so where is the testing that proves your oil being the best? pretty sure that pure pao oils cause seals to shrink and cause leaks in engines, can't hold additives like group 3s and also can't absorb contaminants from the combustion cycle.
2026-11-09 02:15:18
4
precision Welding :
I thought Red Line’s 15W-40 diesel oil also used Group IV PAO and Group V ester base oils.
2026-11-08 21:07:44
10
David Steffan :
yet still unheard of. amsoil is tested to be the best. independent tests and laboratory tests. there is your research. 200k durability tests(hack wasn't even included) and on and on
2026-11-09 16:12:28
1
fatbob :
Scamsoil is multi level marketing, no more no less.
2026-11-09 00:09:26
8
Hankin' On 🏴☠️ :
I run 15w40 rotella in my clapped out 5.3L should I switch to yours? 🤣 J/k. I'm just glad it stays in the thing.
2026-11-08 21:55:17
10
tommyde.17_ :
I like AmsOil gear and trans fluid but motor oil from AmsOil is horrible. I’ve seen many many engines blow with Amsoil.
2026-11-08 21:22:55
5
VMPMoto :
You need help bro
2026-11-09 22:14:57
1
J :
Whats your take on Schaeffer's?
2026-11-08 22:24:53
5
Morrison diesel performance :
probably power driven diesel oil would compared to yours but I’m not 100% on that but I do know they make a good oil too.
2026-11-08 20:30:17
5
donaldchaffin5 :
Prolube best oil additive on the planet !!!🤣
2026-11-09 15:13:21
4
ronlind4 :
Great video and very informative. Not an expert here, just my experience.. I run Castrol GTX 5w-30 (non synthetic) in my 2002 5.3 Silverado, now with 369K. Valve covers never been off and do not add a quart in a change. For this type of vehicle.. why change??
2026-11-09 13:57:52
2
Cameron :
So what grade is their signature series they claim is 100% syn? Can you explain this a little more to me
2026-11-09 01:18:23
1
kingadam1984 :
If we looked at the history of Amsoil. I bet when they're productive got cheaper is when the Stockholders needed to be pandemic to.💰💰💰💰💰
2026-11-09 21:24:00
2
rdy2run427 :
redline is a group 4 and 5 oil
2026-11-09 18:03:15
2
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