At 156k after cam/lifter replaced I started doing DIY Amsoil changes. At 255k I put in a crate engine. If Amsoil made a difference it got the bottom half of the engine to 250k miles from 156k so about 13? oil changes. I think the cost difference is minimal so yes, I think it was worth it. Delaying $10k for new engine is the goal.
Mopar oil filter, amsoil 0w20, don’t over torque filter housing.
Was using motorcraft, switched over to Amsoil. Cost is the same maybe a couple dollars more.
I personally run Amsoil and always have. I think they make a great product and their customer service is solid.
AMSoil signature series. Best stuff you can get!
I've used Mobil 1 in all my vehicles before this car. I have chosen Amsoil Signature Series for the WRX.
I have experience with the long drain intervals from Amsoil. I have 2 dodge vehicles with 3.6L engines both at around 130,000 km and I use the signature series 5w20 with Amsoil filter and I go about 18,000 km before I change the oil.
Amsoil also makes a oil specially formulated for hybrid vehicles since your engine turns on and off more frequently than an average car. Amsoil has a higher Flashpoint than most conventional oils which reduces the amount of oil your car burns.
The best oil you can get for that car is the amsoil signature series. 0w30 or 5W30 in warm climate.
I switched over to Amsoil and I the engine runs much better.
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