Same result here had mine done 1.5month ago car only had 200miles on it. For sure GM has been tinkering with ATF formulas. Perhaps tuning ECM and v4/8 algorithm. Have been looking at people complaining and year car they have and for sure early ones have more issues. So mine is good so far with formula 8/2019
Last edited by mrflorida; 10-12-2019 at 11:28 AM.
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