mpath

Yeah, me too. Will let you know how it all checks out next week.

syzygy333

I blended mobil 1 0w40 and 5w50 on last change, maybe 5qt 5w50 and 2-3 qt 0w40, due to summer weather, in hopes of keeping pressure just that scoche higher when needed most (hot and bothered). havn't really seen noticeable change on the pressure gauge, but it could be small enough to be beneficial and not discernible on the gauge.

there are "reputable" coolant additives, and I've got water wetter in the Porsche now. my water temp "pins at a dishonest 175" as Phil recently said, so I would be surprised to see it move!

did you lose any coolant?

wonder if there are oil additives to improve heat transfer etc.?

mpath

Here's an update: left front fan faulty, not engaging stage 3, needing replacement. I'll pick the car up tomorrow. Thanks everyone for your input.

Jerrsnbrg

Is there any way to tell if the fans are working on there own or do you need a durametric?