Is Anyone Running Mobil 1 0W40 in South Texas?

[regsatx]

I have a 1988 560SL and am thinking of going with 0W40. Is it too thin for Texas summers? The car has had 20w50 dino it's whole life. No Leaks!

[POS]

Ford now uses that as their recomended oils for new cars. Why would you go with 0w40? Why not just use 10w30?

[anthonyb]

I run 0W40 year round, and we get up to 105+ in the summertimes here. If you're really concerned about the heat, you could always try 15W50.

[300B]

You might get some leakage with the M1.

You want to also consider something like a Delo 15W40.