Re: 2012 Buick Enclave Low RPM missing/shuttering
I used that cocktail and it worked for about 1,000 miles. The tranny now has shudder at 2300RPM in third gear besides the Cruise Control 1200RPM shudder.
Around town I drive in L4 and and on the highway L5. I "learned" how to minimize the shudder by avoiding the two conditions. Mileage has accordingly suffered but still cheaper than fixing the transmission, what a PITA!
2009 CXL AWD