Hi all. It's come to the time again when the oil and filter change is due. I have been using Mobil 1 and changing the oil and filter every 5k. Trouble is the Mobil 1 (although I think it's a fantastic product) I've been using is a bit pricey and I was wondering if there are any cheaper, but as good quality oils out there.......
What do you guys use/recomend???

P.S. While we are on with the oil subject I am thinking of changing the gearbox oil to Redline. I want ultimate protection as I am always thinking the gearbox might blow up when i'm driving hard. What do you recommend.

Cheers in advance.........

SC TER.