Hey need advice, I have an 06 tl base which oil should i use 5w20 or 5w30?

 

5w-30 stays 'thicker' at operating temp than 5w-20. The first half is a viscosity rating for cold operation and the second is a rating for warm temp.

a thinner oil will be better for colder climates, while a 30 weight will be better for hotter climates

 

Either/both.

 

^correct, either or will be fine for your TL

 

inb4 oil debate.

I agree with those guys. Either will be alright: depends entirely on the climate. I run 5W-30.

 

i run 5w-30 as well

 

Good i found this thread. I have a bit of a dilemma. I currently use Gastrol Edge 5w30 synthetic, the problem is that i have a whole bottle with 3 QTZ left which means i need an extra 1.5 QTZ. Would it be fine if i can probly mix the remaining of the 1.5 QTZ with Mobil 1 since i couldn't find small bottles for the Gastrol Edge. Please enlighten me, first time doing my own oil change *No flaming please*

 

I'm running 10W30, which is perfectly fine, considering I live in Miami.

 

I'm also planning on buying Mobil 1 5w-30 as well. Any in takes?

 

You can mix weights and brands. I would go with a good 5w-30 in 90% of the situations in North America. In really cold areas or if you do mostly short trips, a 5w-20 might be for you. Just remember these engines spec'd a 30wt years ago with no changes to the bottom end since then so don't be afraid of the 30wt oils.

There's a ton of info on oil weights and brands around here if you search.