yo, i live in phoenix, arizona... the hottest part of the united states, lol. we see temperatures of 120 degrees on a normal bases in the summer, should i still be running 5w-30 mobile one synthetic?? I have heard when the weather gets hot to change oils.. i searched but found nothing but info for the 1.8, lemme know whats up and ill go from there, thanx players lol...

tim

 

10w40 might be a good choice, 5w40 too

 

Check out the owners manual under oil. You will see a graph with different oil grades vs temperature in there. Looking around on the site you will see all the 1.8T guys talking about 0-40 or whatever they use.

I am in SC which doesn't get as hot as AZ, but doesn't get really cold either. I posted a similar question and was told to use the manual. There are several options for the higher temperature climates. I personally use Mobil 1 Synthetic 15W-50.

 

i put 5w 30 synthetic in today... mobile 1... should be cool

 

0w40 or 5w40

The 40 part means it stays thicker at the higher temps, giving better protection.
maybe do a water/meth injection to keep the intake cooled down in the heat.

 

If the Mobil 1 0W-40 or Castrol Syntec 5W-40 are consumed to fast,
try Mobil 1 15W-50 or Castrol Syntec 20W-50.