With 243,000 miles as a potential maintenance dose? Transmission shifts good but considering the mileage would it be a good thing to do or should I leave it alone? Capacity is 11 qts and I do siphon and fill about 3 qts a couple of times a year and the fluid is clean and a bright red and doesn’t smell burnt. I’ve been using the Supertech Dexron/HM conventional ( not synthetic ) fluid for years with no problems and the LG red seems to be well liked here but not being a big additive fan I’m a bit hesitant to use it. Thoughts appreciated.