Thinking of switching oil Options

[NYp8tBaller07]

So being in school and having no money I'm thinking of switching oil. ATM I use Mobil 1 10W30, I like it but its about $30-$35 per 5qt so that plus oil filter adds up to almost $40 per oil change and I just cant to that. I'm thinking of going to rotella as 10W30 is $16 per 5qt.

Anyone have any thoughts of shell rotella? From what I have been reading its pretty good.

[Bitter]

Shell Rotella is for commercial and heavy duty diesel applications, as such has high antiwear additives which may harm a gasoline engine's catalytic converter if you're burning oil. That being said, I run M1 Turbo Diesel Truck 5w-30 in my 2ZZ to better protect the high lift cam lobes, however your engines have none of that metal to metal contact. You'd be fine running any conventional oil with a good filter or any synthetic or synthetic blend with a good filter. Valvoline Max-Life synthetic with a Purolator Pureone should be a good combination, just remember that with any oil you need to check the level regularly. I check every 500 on the Celica and every 800-1000 on the Mazda (which runs 0W-30 M1).