Here I am on the return trip stopping off at the Canadian River north of Amarillo. The water is solid red but nice and cool when I lay down in the river for 20 minutes. I had tissue stuffed in my ears most of the way and the hot winds pounded me with both windows open...the usual for 914's, right?
Click to view attachmentWhat was most interesting was my oil temps. Last summer I used Quaker State Rely oil. This last change I switched to Royal Purple HPS. Both have higher zink, the QS is $15/5 qts, the RP HPS about $45/5qts. QS and standard RP are both available at WalMart but the HPS RP has to be ordered from a FLAPS.
In last year's summer heat my oil temps were around 250. On this trip the oil temps were 215 the whole trip. Like Jake and others tell us, different oils give us different temps.
Very interesting. So for any armchair engineers out there, this oil temp range has to come from one of two sources: either the synthetic reduces friction better and therefor less heat or the engine heat is dissipated better by the synthetic. Any opinions?
BTW, 1628 miles, 65-75 MPH (well, okay,. a few stretches @90 mph ) , 45.21 gallons regular/85 octane gas, 36 mpg average.