So I was just at Walmart yesterday, hoping to find the MC 5w20 blend 5qt jug for a good price. It was $17 something, a bit more than I was hoping for. Quaker State 5qt GB is $12.xx and the UD is $20.xx. They have the GB in 5w20, but only 5w30 in the UD. Would it be dumb to do a 50/50 mix of the two for my wife's Prius? That would end up being about $3.20 a quart for a syn blend that is probably higher than most. I assume everything would be fully compatible/complimentary within the same brand?
Thanks, Doug
Thanks, Doug