i have a 1991 celica all-trac that has a 2.0L turbo dohc engine, im currently using castrol dino oil 10w30. some people told me to use valvoline synthetic 10w30 and others said mobil 1 0w40 synthetic. the temperature were i live is starting to climb again and eventually it will be in the high 90's and often gets around 105f. right now it burns oil but not sure exactly how much because i got the car 5 months ago. so can i get some advice on witch oil and weight and viscosity and what filter is good for me? i often drive it fast but not redline fast