Oil in hot weather, please help me

fir3 · Post by **fir3** » October 28th, 2005, 10:06 pm

I'm from Brazil and here the average temps are 23º~28ºC / 73ºF~82.5Fº all the year.

It's a kind of hot.

Which oil would you guys recommend for me (that avoids hla ticks) ?

What brand ?

Synthetic or Mineral ?

Thank you.

neutral · Post by **neutral** » October 29th, 2005, 6:03 am

fwiw, I use 100% synth year round - usually Mobil1. In my area, April - Oct high temps are 70* - 100*F so 10/30w. I switch to 5/30w for the Winter when high temps usually don't get much above 32*F with periods where temps don't even reach that. Maybe I should live in Brazil for the Winters... your climate sounds nice.

As for the HLA ticking, have ya looked at these?
http://www.miata.net/garage/tsb/tip_1_0595.html
http://www.miata.net/garage/tsb/s004_93.html

fir3 · Post by **fir3** » October 30th, 2005, 3:14 pm

I was talking to a mechanic and he told me to use castrol GTX 20W-50...
What do you think ?

My car has 68.000 KM (42.000 miles)

fir3 · Post by **fir3** » October 30th, 2005, 9:03 pm

fir3 wrote:I was talking to a mechanic and he told me to use castrol GTX 20W-50...
What do you think ?

My car has 68.000 KM (42.000 miles)

neutral · Post by **neutral** » November 1st, 2005, 3:37 am

fir3 wrote:I was talking to a mechanic and he told me to use castrol GTX 20W-50...
What do you think ?

My car has 68.000 KM (42.000 miles)

Wow, that's nice low mileage. 20W/50

- IMO that stuff is thick as molasses and in your climate, I'd only use it on a high mileage very worn (out) engine with badly worn piston rings to minimize oil blow-by. Otherwise, would be concerned that the thicker oil would not flow well through the narrower internal engine oil passages and such.