89325iturbo

Hi since I'm new to miatas I have done an oil change yet. What's a good weight to run now that it's gonna be becoming warmer?

budget racer

iTrader: (1)

It probably depends on the health of you engine. My HLAs make lots of noise when at operating temperature. Mine seems to do best with 5w40 or 5w50 (if I can find it).

miatauser884

iTrader: (11)

i thought the general consensus was rotella t6 full synthetic was best for normal duty and track day stuff. great performance and low cost.

off topic. a buddy at work was telling me the head in his rendevous needed to be rebuilt. it was making noise. i road in it an said it ws lfters. i asked if it was worse when cold. he said yes. i say, go to walmart get the above mentioned oil. drive for 1k miles change it with same stuff. tell me if it sounds different. 3 days later his wife calls and said it doesnt make noise anymor, even when cold in morning.

cool story bro, i know.

update: It also got rid of the HLA noise in my 1.6

Tnn

iTrader: (1)

mine works best with 10w30. I've tried 5w30 but it's too noisy and burns oil on startup with the forged pistons that i have.

dgmorr

iTrader: (4)

I use Mobil1 0W40. So far my engine hasn't blown

revlimiter

iTrader: (1)

Another M1 0w40 user here. It's arguably the best oil available under the Mobil1 name.

Cspence

iTrader: (11)

5w-40 rotella syn ftw

hustler

iTrader: (6)

Dino Rotella for a street car until you determine which mileage gives you enough fuel shear to warrant the oil change and see if it's worth running the synthetic.