August 19, 200818 yr Hi all I had been running my bike on the same oil and ratio as my 2001 gas gas txt 280 pro2 at 100-1 and I had noticed last time out on the bike that the engine was rattly and there seemed to be a lot of piston slap, bought new rings, small end etc and when I pulled it apart noticed that the back of the piston was flattened(not round as it should have been) so I put in a new piston as well. While talking to the dealer I got the bits off he asked what oil etc I was using and said I should be using semi synth instead of fully synth and at a ratio of 50-1 is this right?
August 19, 200818 yr Have a looky here- Clicky linky This should help you decide what mix to use in the future? My Gasser manual also states 50:1 fully synth but I personally use 60:1 and have never had any problems. I'm of the old school 'better too much than too little' way of thinking but as you can see the majority run with 80:1. The choice is yours....... GJ
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