I think Amsoil is a really good oil, but to recover the cost, you MUST run long oil change intervals and I just would rather run shorter intervals such as 5000 with name brand synthetics or 3000 miles with conventional oils, that I get on clearance or with rebates. If you can stand the thought of leaving oil in your engine for 15000 to 20000 miles, then Amsoil is the only oil I would go with.
I've ran Amsoil several times and was never impressed. Save the extra money and go on amazon and buy Eneos. When buying from amazon there's no shipping and tax. I have yet to come across a speed shop that uses Amsoil. Most either use Motul or Redline many are starting to carry Eneos.
ACD does not meet GM specs (GM 6094M) for the DI. If your dealer is a twit, he can use that against you IF there would be a warranty claim during your 5 year 100k marriage. However, the argument could/would be made that it is a better oil than GM calls for. That's your gray area, and what you will have to decide. I think any oil you choose will have it's life shortened by the fuel dilution you will see. The DI may be one of those engines where the "best" oil for it is conventional, and changed often.
Way too many hairs split in this thread. Just pick one of the bunch. You're overanalyzing this, and that's saying a lot considering we are talking BITOG here.
Originally Posted By: Brons2
Way too many hairs split in this thread. Just pick one of the bunch. You're overanalyzing this, and that's saying a lot considering we are talking BITOG here.
Some of the guys with DI engines are having best results with RLI, as far as keeping the intake valves clean, which you mentioned. This oil was shown to run cleaner/last longer in DI turbo engines than Redline, Amsoil, Mobil 1, and others. It is a different type of oil and a bit pricey. You are already considering a non API-licensed oil if you are gonna use any Amsoil except Amsoil's XL-7500 line of oils, which are API-licensed.
Anyway, just thought I would mention it since you said price was no object. The Amsoil will work fine.
Here's a lot of reading on this RLI stuff if you have any interest. It is probably way overkill in your application.
Amsoil has 2 oil 'lines' - their APIcertified 'XL' oils, and their non-API-certified oils - ASL, ATM, SSO...etc...
Your new GM will require an API-certified SM oil for the warranty. That means, if you give a heck about the warranty, you eed to use the 'XL' line of oil (the 5W-30 one).
Lots will disagrre with this, but I think it's idiocy to temp fate of having your warranty possibly denied for using a non-certified oil.....but your call.
Originally Posted By: bmwtechguy
Based on testing that Terry and RI_RS4 did a while back. A non-turbo DI engine that is driven normally may not have any problems that RLI could fix.
How did they demonstrate that RLI ran cleaner/lasted longer than RL/M1/PP in DI engines?
I have run Amsoil for 7 years in all my vehicles along with 2 trash pumps that probably run in excess of 100 hrs per season. Run once a year oil changes in a Ford 4.0L
SOHC V6 (0W30) and a Chysler 3.7L SOHC V6 (0W20). Before, I ran M1 going back to the late 70's using 12K to 15K changes. Both are excellent products. Both are made from PAO base stock with the exception of Amsoil XL series. On a Ford blog someone mentioned that M1 was no longer made from PAO base stock. Do not believe that is true but I could be wrong. I do run B&S Synthetic 5W30 in my garden tractor and snow blowers since Amsoil only offers a small engine oil in a 10W30 weight and B&S highly recommends 5W30 for winter use in their motors. Interested now in PU or PP based on numerous posts on how well either oil cleans or rather holds contaminents in suspension. But neither would probably suffice for extended drain capabilities you can obtain from Amsoil (XL series not included). This is my initial post.
Originally Posted By: addyguy
Some things to keep in mind:
Amsoil has 2 oil 'lines' - their APIcertified 'XL' oils, and their non-API-certified oils - ASL, ATM, SSO...etc...
Your new GM will require an API-certified SM oil for the warranty. That means, if you give a heck about the warranty, you eed to use the 'XL' line of oil (the 5W-30 one).
Lots will disagrre with this, but I think it's idiocy to temp fate of having your warranty possibly denied for using a non-certified oil.....but your call.
I was going to bring this up as well. The OP needs an API certified oil with the starburst( not just SM service level )for his warranty requirements and only Amsoil XL fits that of their oils. There is no reason not to use an Amsoil product in your new vehicle just use the right one to preserve your warranty and change it on time as well( 5K is a good idea in those engines but at the most do not exceed the OLM ).