I am in the process of refresh the ATF in my 1999 Cherokee (XJ, I6) with 110 KM on the AW4 transmission. I plan to use maxlife ATF as I can get a decent price from advance auto using online coupon. I am also tempted to use lubegard red since so many member reported great results with this product. My question is, since maxlife is already a synthetic fluid, will it be a waste to add lubegard?