9/24/2023 0 Comments Gm power steering fluid![]() ![]() ![]() 9 years later, I'm still getting metal off that magnet (though very little these days), but the system has been trouble-free since. The fix involved a thorough p/s flush, new pump, a magnet in the reservoir to catch remaining metal, ran the p/s return line through a small transmission cooler, and filled the system with Mobil 1 synthetic ATF (has since been turkey-baster flushed on occasion with Mobil 1, DexVI, or Transynd, depending on what I have on hand). I wiped off the belt, filled the p/s with 10w30 motor oil (the only petroleum-based lubricant available at the one run-down gas station that was open), and limped the car home 180 miles across the barren wastes of Eastern Colorado. Most of the regular fluids in the stores cited equivalency to 1050017. If you cant find a replacement, I can pick some up for you and ship it. and none of it is open on a Sunday afternoon. that sucks.as I just bought 2 quarts of the GM power steering fluid last Sat. There's almost NOTHING in Goodland KS anyhow. This was on a Sunday afternoon in Goodland KS. allowing the water pump to slip, resulting in an overheated engine. GM has designed this GM Terylene Highline CVT, which comes with GM Terylene Power Steering Fluid. Here is a link to some information on GM power steering fluid, Automatic Transmission Fluid, and the other fluids available at K-Mart, Walmart, NAPA, etc. It is the current approved GM power steering fluid. So it is a good number and is available through GM dealers. It boiled the fluid, puked it all over the belt. 89020661 shows up on GMPartsDirect at 5.60 per unit. The viscosity is about 7.5 cSt100C and 51 cSt at 40C. This situation required the p/s pump to put out pressure for probably an hour. If you are talking about GM PS fluid 89020661, it is a mineral oil based fluid, undyed, with a boron, phosphorous additive mix. This involved a 110 degree day, a STEADY 50mph wind from the South (in BFE Kansas), driving west at 80mph in a construction zone with the lane tilted HEAVILY to the north. This was on a '94 Chevy Corsica- 6 years old and 80k miles at the time. No issues so far.īut I did have two pump failures on the same vehicle while using approved power steering fluid. I've used synthetic ATF in my GM power steering systems for years. ![]()
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