View attachment 827133 View attachment 827135 View attachment 827131 Took a few cars for a test drive today, we're going to Tahoe in a couple weeks & wanted to make sure the cars could take the heat..
It was 97 degrees in Modesto today, we hit the road at about 2 PM so it was heating up nicely...
Our destination was Priest Station which is right at the top of the Old Priest Grade..
The elevation in Modesto about 70 ft above sea level, Priest Station 3,100 ft..
So your climbing slightly for a good bit of the drive, the killer is the last 1.8 miles with just over 1700 feet of elevation change, parts of the Old Priest Grade push 18-20% grade so if your car is gonna overheat Priest Grade will let you know it in short order...
So about a 45 mile drive each way but the drive home is easy... The drive up is a real torture test if your cooling system isn't up to the task...
I had the A/C on the entire drive, the two cars I was traveling with shut theirs off for the last couple miles, not that they wouldn't have been fine but they didn't want to push their luck...
Anyway, as I've posted before I have a digital temp readout on my EFI handheld so I track the temp pretty accurately....
Leaving the house it heated up to 185 pretty quickly, then slowly worked it's way up to 204 which is where it seems to stay with the A/C on...
The last ten miles before the big climb the grade increases & the temp locked in at 208... Then the big final climb, 1700 ft in 1.8 miles... The temp stayed right at 208 & as I pulled into the parking lot of the restaurant it blipped up to 210... But by the time I'd parked the car it dropped back to 204....
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