long question short, Ive got 5 quarts of synthetic, which is .5 not enough. can I go the extra .5 quart with a different oil, same viscosity, or does the chemical additives when put together do some crazy voo doo and break each other down? I know, its only 10 bucks, ill buy a quart, but was just curious if mixing brands was really a big deal. thoughts?
also, any help on the flex dipstick? I find it exceeding hard to read. is there a trick to it?