454cid
Sooper Pooper
So where does one obtain proper Dexron lll? Now you've got me concerned that I put the wrong stuff in my trucks, topping them off....
I don't think it'll be an issue as long as you're not buying dollar store oil/ATF. I think I have a jug Valvoline and I've also got Walmart/Supertech (probably from Warren). GM may not be licensing Dex3 anymore, but that doesn't keep other comapnies from selling it. They just can't say it's GM approved/licensed/official/whatever.
I've never used DexVI. I don't think it's worth the money for my 300K mile 4L80E, even if it would work. When I had my Saturn, I was told not to use it, on the Saturn Forum, and I'm certainly not going to put it in my TH400 in my LeSabre. I'm not sure what my Volvo uses..... I think the steering system uses Dexron, but the transmission is an Aisin.