im in austin, TX and its starting to get ridiculously hot. i was wondering since its starting to get this hot do i need to make some changes....

water/coolant mix? 60water/40coolant?

weight of oil? mobil1 10w30 ok?

 

 

im curious too

 

hows your cooling system holding up ? today was really the 1st day i have driven my car some distance in the heat and started to overheat . and i have no leaks everything is good but my rad. is just overworked i guess. you might want to invest in a upgraded radiator

 

i run 15w50 mobil 1 and it runs very nice in the hot weather. im from houston so i know how u feel. as for coolant, if everything is working ok right now, just keep it the same other than that i just wrapped my a/c lines. A/C is a must in Texas

 

 

If you can do it easily I'd suggest a re-tune. I like to give my customers 2 maps one for winter with some extra fuel and one for summer with a little less fuel because if you run Hondata/Uberdata/Crome/(and I believe) Neptune you have no IAT correction so if you tune in the winter you we be .5-1 point richer in the summer and if you tune in the summer you can be .5-1 point leaner (not good this way) in the winter. If you have a wideband or can borrow one for a couple minutes use it and check your AFR's.

As far as coolant, I guess you could add more water, but then you'd have to flush for the cold winters so unless you have heating problems now, i wouldn't

I'm not too sure on oil. I don't know enough to be talking about it, but I and many others use 10w 30 all year long with 0 problems

 

good info, thanks man