Engine oil AMSOIL or Lucas

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.

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.

Right now I have some Lucas High Performance, but the brand is relatively immaterial to me. As long as it's a reputable brand and it meets the spec in the manual.

I take my own oil to my mechanics shop. I use Amsoil Signature in my Challenger.

I use it on my 22 street Bob. My mechanic swears amsoil will make it run cooler but idk. I’m going to try the amsoil when my 10k comes up soon. I’ll always run synthetic either way.

I have personal experience with using amsoil in a Cadillac Northstar which are notorious for burning. It did stop that in that car

So I drained the gearbox while I was there and refilled with 1/4 Lucas oil, the rest 80/90