Well then I doubly disagree...quote:
Originally posted by Patman:
I disagree, the temperature of the oil is the main concern, not the ambient temp. If he's seeing 185F oil temps and it's 100F outside, then that car obviously has a good oil cooling setup. So it doesn't matter how hot the outside temp is, if the oil temp is that stable.quote:
Originally posted by Dr. T:
AEHaas, it appears that you are more concerned with oil temps in making a viscosity decision rather than ambient temperature. Both need to be taken in to account and balanced out.
Look, the oils temps are a good consideration. Thinner oils may run a couple degrees cooler...but so what? If the oil temp is too high and is of concern....get an oil cooler...NOT switch to a thinner oil.
In other words, thinner oil provides LESS protection at temps...hence, the summer grading of 40, 50, 60 weights....why think in the reverse?