Originally Posted by roccobike
Yes, WD-40 is a great cleaner, but I think the previous owner cleaned it thoroughly when he soaked it in solvent. I'm looking for a lubricant recommendations.
However, you might have a point here, maybe additional cleaning is in order. I'll have to think about that one. Thanks.
Your first posting was accurate but I wanted to make sure that I understood it. As you know some folks have a different definition of upshift and downshift for bikes.
How about the cables and housings? Excess friction could account for the problem you are having, especially in the short housing at the back, just before the rear derailleur. You could test this by lubricating the cable, if the lubrication improves shifting you probably need new cables and housings.
As for a shifter lubricant, I think your Finish Line should be just fine. I would probably use what I put on my chain, home brew or Purple Extreme.
Let us know how it turns out.
Al