Hi everyone - I've been buying a lot of older saws lately and end up spending a lot of time cleaning them up real well - lots of grease, grime, etc. I've been just using straight gas, but I'm getting tired of working with it all the time. Any recommendations for a good decreaser? I've seen some by Gunk, WD-40, etc. - I'm assuming the are all pretty much the same, but thought I'd ask. I assume it would be okay on the plastics as well? Thanks! Cheers!