I've always used Redline MTL in my 1987 bmw 535is, changed it out twice in the last 5 years of ownership. Current fill is getting bad, synchros are kicking back, wont go into first sometimes. Last time I had it changed my indie said it looked like glitter. I've got some Amsoil MTG coming soon, but I wanted to find an affordable gl4 trans lube to run on for maybe a month and then dump it to flush out as much metal as possible before putting in the Amsoil. I know this might be excessive to some, but this old bimmer is my only ride and sees the road a lot. For the life of me I cannot find anything that isn't a boutique MTL and costs $18+ a bottle.
Thanks.
Thanks.