CRC05350 Belt Conditioner - 7.5 Wt Oz.

Stopped the squeaking. Working so far.

I recommend following the directions, but with a slight modification. When you first spray this on the belt (with the engine running), it will cause the belt to have a loud screeching/squeaking noise, which will be way worse than how it was before. I sprayed it on sparingly with the engine running until I felt the belt had a very light coating and the squeaking disappeared. After a day or so the squeaking would resume, and I'd do that process again. This continued for several times, until one day it just stopped squeaking. So I think the key is that it needs to be applied sparingly, but several times, and allowed to soak in. After a sufficient amount has soaked in, it seems to work. It kept me from having to buy a new belt, as my current one is in great shape but just squeaks. It doesn't last forever, though. I seem to recall it lasts about six or eight months, and then you have to spray it down again. It doesn't turn an old belt into a new belt, but it turns an old, dry, squeaky belt into an old, conditioned, quiet belt.

Works decent. Multiple applications may be necessary and be sure to bet both sides of belt

Driving an old 25 year old BMW that was making chirping noises in the belt pulley area under the hood. I tried everything. Took it to two repair shops, had pulleys checked and replaced, new belts, pulley alignment and the noise would just not go away and was driving me insane. Even tried dialectic grease. I would have tried this product earlier but the so called internet car experts said never use this on a belt. Boy are they wrong. I applied about a third of the can on my belts and the chirping squealing noises disappeared. It's been a month now so it does last. I ordered more and keep a can in my car in case it starts chirping again but haven't heard anything yet. Will most likely need to be reapplied at some point.

Kinda just made it squeek louder. Probably just need a new belt. After driving a bit it goes away but did that before the spray stuff. Sure this keeps new belts from drying out but I'll just get a new belt put on.

Stops belt squeal.

Does not work. My belt would only squeak on damp mornings so I sprayed this on and made it 10 times worse. A week has gone by and belt squeaks on every start up now and will only go away if driven for a while. Save your money and go buy a new belt.

Works as it should