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By Grumpy Bear · Posted
This biggest difference in a HM oil is in contains some "Seal Conditioner". DEXOS oils and most shelf oils are "Dry" oils which over time harden seals. "Seal Conditioner" is more times than not, an Ester. Addition will soften the seals over time but will not repair one that leaks or has cracked. Esters also provide some cleaning but these HM oils don't contain enough to solve out hard deposits. Just the soft stuff. Also a function of an Ester. Ester's are not 'allowed' as a 'co-base" by license. Weird, right? A certain amount is allowed as an additive. Bunch of game playing is what it is. It's why HM oils don't have a DEXOS approval. DEXOS is a license 'with' a specification but is not a specification. Never was, never will be. It's GM's slot machine always paying the house. Use what you like. -
Have you already dealt with the trans thermostat, which I think your burb might have? I know the trucks have one that keep the trans temp higher. -
By soundquest · Posted
Our 2007 Acadia had a stroke basically and the car will not move now (although it starts but the idle is erratic with the RPM's fluttering). I can get into reverse and the car will actually move, but in Drive, the throttle does not respond and the car will only move an inch or two at the most. Gauge messages abound -- the usual suspects. Somewhere in the wiring, something has to have gone horribly awry -- either at the BCM (could be right at the harness plug), under the fuse block where all the wires terminate, or a failed ground (or even a bad BCM). In any case, with the number and type of codes I am getting, I am looking for some additional guidance as I know my issue cannot be unique but one of many that has afflicted other Acadias (and similar varieties). Here is the code list (and there are additional codes as well, but these are the big ones): -
If it is just due to low resistance, then I would add LED hyperflash resistors to the left and right brake/turn signal lights, and if that doesn't work, perhaps the parking iights as well.
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If you keep it, i would just add 4 ball joints, an idler arm and most likely pitman arm to you future list. My 95 s10 zr2 ate 5 sets of ball joints, 4 idler arms and 3 pitman arms in a 100k of use, a glaring weak spot even with the non zr2 variants.
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