Amsoil signature series? What’s the scoop and hype?

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AMSOIL ss is one of the better engine oils on the market, though the application, plus what you want out of the product, and what you want to spend for your expectations oci ,etc ,there are also really other good completive engine lubricants to choose from, ultimatly its the buyer's choice on your perspective wants and needs.
 

This is the older SN formulation but gives you an idea..

At the end of the day, there really isn't much to go by unless you test and share results.

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I started my interest in PCMO with Amsoil Signature 3-4 years ago. Signature is excellent oil and given the right application I 100% believe in it's up to 25k mile claims. However, past couple of years regular off the shelf oils have advanced greatly to the point where Signature doesn't really hold as much of an edge over them. Example the large popularity and supply of many Euro spec oils. Mobil EP/ ESP, Pennzoil PP/UP/ Euro's, and Valvoline EP/ R&P just to name a few. What turned me away from Amsoil in general is the fact that most new vehicles now are either DI or Turbo DI. Which basically limits you greatly as far as OCI. From the typical 15-20k expected OCI with Signature with average driving conditions down to 3-7k with DI or Turbo DI. Even if your application doesn't have DI you can still do long OCI with any of the brands mentioned and others. Pretty much in the ideal engine/ driving environment most of the top shelf wally world oils can live up to the 15k-20k claims. All comes down to your vehicle, geographical environment, and annual mileage. As much of a fan of Amoil I used to be I cant justify spending $44-50 a gallon when I can get excellent oil that's either equal to or very similar in performance for $25-30/ 5 quart jug at wally world. Amsoil great but their lower tier offerings is not much of an offering. Signature is where they really shine. Now if you want to try Amsoil by all means do it. I'm not bashing against them. However over time you will probably arrive to the conclusion most of the somewhat former users of Amsoil reached. Just my 02 Cents.
 
Nuclear_42 said:
I started my interest in PCMO with Amsoil Signature 3-4 years ago. Signature is excellent oil and given the right application I 100% believe in it's up to 25k mile claims. However, past couple of years regular off the shelf oils have advanced greatly to the point where Signature doesn't really hold as much of an edge over them. Example the large popularity and supply of many Euro spec oils. Mobil EP/ ESP, Pennzoil PP/UP/ Euro's, and Valvoline EP/ R&P just to name a few. What turned me away from Amsoil in general is the fact that most new vehicles now are either DI or Turbo DI. Which basically limits you greatly as far as OCI. From the typical 15-20k expected OCI with Signature with average driving conditions down to 3-7k with DI or Turbo DI. Even if your application doesn't have DI you can still do long OCI with any of the brands mentioned and others. Pretty much in the ideal engine/ driving environment most of the top shelf wally world oils can live up to the 15k-20k claims. All comes down to your vehicle, geographical environment, and annual mileage. As much of a fan of Amoil I used to be I cant justify spending $44-50 a gallon when I can get excellent oil that's either equal to or very similar in performance for $25-30/ 5 quart jug at wally world. Amsoil great but their lower tier offerings is not much of an offering. Signature is where they really shine. Now if you want to try Amsoil by all means do it. I'm not bashing against them. However over time you will probably arrive to the conclusion most of the somewhat former users of Amsoil reached. Just my 02 Cents.
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I think I’ve already decided to just stick with Toyota genuine motor oil honestly after the comments here and other reading I’m doing. Especially because I plan on doing 3-5k mile oil changes on my 2024 tacoma anyway.
 
SR5FENZ said:
I think I’ve already decided to just stick with Toyota genuine motor oil honestly after the comments here and other reading I’m doing. Especially because I plan on doing 3-5k mile oil changes on my 2024 tacoma anyway.
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Not a bad idea. However I suggest looking into a quality name brand oil at Wally World. Most of them would probably be equal to or better for less than dealer pricing on oem relabeled oil.
 
SR5FENZ said:
I think I’ve already decided to just stick with Toyota genuine motor oil honestly after the comments here and other reading I’m doing. Especially because I plan on doing 3-5k mile oil changes on my 2024 tacoma anyway.
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Are you still under warranty? If not I'd probably stick with Mobil1 FS 0W-40 or Mobil1 SuperCar 0W-40, specially if you're hauling and towing with the truck.
 
Mewbs said:
Are you still under warranty? If not I'd probably stick with Mobil1 FS 0W-40 or Mobil1 SuperCar 0W-40, specially if you're hauling and towing with the truck.
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I don’t tow at all, I work in the collision repair business so I get a discount on Toyota parts and oil
 
I did 5k oci’s in my car since day one with majority group 3 synthetics from Wally. In fact one of BITOG’s darlings. Now at 117k I have an oil burner with stuck oil control rings. I should have just used Amsoil SS or HPL. Hindsight is 20/20. You have a very nice expensive truck. The true synthetics are superior.
 
Nuclear_42 said:
I started my interest in PCMO with Amsoil Signature 3-4 years ago. Signature is excellent oil and given the right application I 100% believe in it's up to 25k mile claims. However, past couple of years regular off the shelf oils have advanced greatly to the point where Signature doesn't really hold as much of an edge over them. Example the large popularity and supply of many Euro spec oils. Mobil EP/ ESP, Pennzoil PP/UP/ Euro's, and Valvoline EP/ R&P just to name a few. What turned me away from Amsoil in general is the fact that most new vehicles now are either DI or Turbo DI. Which basically limits you greatly as far as OCI. From the typical 15-20k expected OCI with Signature with average driving conditions down to 3-7k with DI or Turbo DI. Even if your application doesn't have DI you can still do long OCI with any of the brands mentioned and others. Pretty much in the ideal engine/ driving environment most of the top shelf wally world oils can live up to the 15k-20k claims. All comes down to your vehicle, geographical environment, and annual mileage. As much of a fan of Amoil I used to be I cant justify spending $44-50 a gallon when I can get excellent oil that's either equal to or very similar in performance for $25-30/ 5 quart jug at wally world. Amsoil great but their lower tier offerings is not much of an offering. Signature is where they really shine. Now if you want to try Amsoil by all means do it. I'm not bashing against them. However over time you will probably arrive to the conclusion most of the somewhat former users of Amsoil reached. Just my 02 Cents.
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Amsoil SS is more like $58 a gallon. I do believe it's good stuff though.
 
What I like about Amsoil, is that they clearly state all the specs on their products, as much as the lehman like me can digest. They leave very little to speculation. Another thing of course is that they are a domestic company, domestically owned.

I have used some of their products in the past, I would say that I would have no reservations in using it again.

That being said, they run serious marketing campaigns, and have to make a buck, so I trust them just as much I would trust Mobil 1 or others.
 
Glenda W. said:
I did 5k oci’s in my car since day one with majority group 3 synthetics from Wally. In fact one of BITOG’s darlings. Now at 117k I have an oil burner with stuck oil control rings. I should have just used Amsoil SS or HPL. Hindsight is 20/20. You have a very nice expensive truck. The true synthetics are superior.
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Absolutely - true synthetic will keep rings cleaner.
 
SSO does continue to have a strong add pack and TBN.
I do drains according to the OLM on the HAH, usually around 9K or so, so needing four quarts of something a couple of times each year is no big deal.
 
I think Amsoil makes a lot of good products.
I like their:
0w40 powersports
5w30 tractor hydraulic fluid
15w40 SS HDEO
Universal red grease
Diesel treatment
PI treatment.
Plus you support American workers.
 
MolaKule said:
Just for the record, the original Amsoil products were composed of majority ester base oils with an appropriate additive pack formulated by Hatco.

The last presentation Al made in Kansas stressed majority PAO base oil formulations assisted by esters as co-bases, because of the high cost of esters.
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Correct, the original 1972 oil from Hatco was based entirely on a diester (DTDA), but Amsoil changed to a PAO/ester base in 1979 after Hatco raised the price by 15% in the fall of 1978, about a week after I moved from R&D to Sales at Hatco.
 
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