tinfoil_hat
I'm Awesome
I went around and around on this a few years ago.
After seeing what old Dex can do I swore I would find a better product. After hours spent reading different articles and forum posts I converted all of our vehicles to Zerex G05. But see most of these vehicles leak here or there and need to be topped off. I couldn't find the G05 anywhere reliably. Wife and kids would buy the wrong stuff, etc. Eventually I said to hell with it and went back to what the manuals specify for each vehicle.
For the Suburban, I buy the full strength Oreilly Dexcool knockoff, mix it 50/50 at home. The key is to flush it yearly. As mentioned above, make sure you pull the knock sensor and the block drain on the other side. The first time I did this nothing came out but rusty dust.
After seeing what old Dex can do I swore I would find a better product. After hours spent reading different articles and forum posts I converted all of our vehicles to Zerex G05. But see most of these vehicles leak here or there and need to be topped off. I couldn't find the G05 anywhere reliably. Wife and kids would buy the wrong stuff, etc. Eventually I said to hell with it and went back to what the manuals specify for each vehicle.
For the Suburban, I buy the full strength Oreilly Dexcool knockoff, mix it 50/50 at home. The key is to flush it yearly. As mentioned above, make sure you pull the knock sensor and the block drain on the other side. The first time I did this nothing came out but rusty dust.