200K Transition Mobil 1 To Amsoil
- Thread starter RobbS
- Start date
But not for much longer intervals with perfectly good engine oil ready for more miles to go. Mobil1 can't and Amsoil can
I’m not sure you’ll see any benefit going from EP to Amsoil. Especially going 5K on EP to 10K on Amsoil.
The Amsoil is a good product, but it’s not magic, and it won’t do anything drasticly different than M1. Sure, it has more additives (TBN), but depending on the EP grade the base oil is probably only marginally “better”. In a low performance Corolla that difference is largely irrelevant imo.
The EP is capable of 10K or more miles as well, that doesn’t mean you should do extended intervals however.
I would as suggested above, run your Amsoil at 10k intervals and call that good.
The Amsoil is a good product, but it’s not magic, and it won’t do anything drasticly different than M1. Sure, it has more additives (TBN), but depending on the EP grade the base oil is probably only marginally “better”. In a low performance Corolla that difference is largely irrelevant imo.
The EP is capable of 10K or more miles as well, that doesn’t mean you should do extended intervals however.
I would as suggested above, run your Amsoil at 10k intervals and call that good.
If it ain't broke....
Patman
Staff member
Anytime that you’re switching from one brand of oil to another I don’t think it’s a good idea to immediately start doing 15 or 20k intervals. There’s still some of the previous oil in there so that resulting mix of chemistry might not be up to the task of such a long interval. I would recommend doing a 10k interval first and get a UOA and then try 15k on the next interval. If that report looks good then consider doing 20k. The UOA is your best indicator of whether or not that interval is safe for your specific situation
Why change up something that’s working? Stick to what got you there!
Could very well be !
Doesn't mobil 1 EP carry the up to 25000 mile guarantee ?
I think who ever posted something smells fishy may be on to something.
Why would you screw with something that supposedly has ran 200000 trouble free miles ?
I know ! his money he can do what he wants
There are other reasons to get a filter cutter, Especially going extended drains.
isn’t that what they’re all shooting for these days. Castrol and Pennzoil have the 20K claim. If Mobil has the 25K impressive
That’s what my thoughts were but I wasn’t going to get involved OP knows what he’s got going on there. I would want to see how the filter is holding up look for silver flakes and fairy dust.
Long time Amsoil user here.
In your position I'd sample the Amsoil at 10k (leaving it in), and extend further based on UOA.
Be certain to use a filter rated for 20k though...unless checking as suggested above.
I have a stash of Amsoil filters and Mobil1 filters. Both should handle 10k miles.
I've never used Amsoil before. Feel it's a superior productI think this is a catfish to support and promote amsoil.
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