CD-2 4111R Oil Detergent - 15 oz.

Used for years and my engines all exceed 180,000 miles one went 198,000 without any major repai at trade in

I've heard good things..........I'm waiting for it to work (I was told it would need to run for 500 miles), but I haven't noticed improvement yet. According to the instructions, a second bottle is sometimes necessary. I have been looking around for somewhere to get one, but there are only a few places that have them online for exorbitant amounts of money. Does anyone know if they discontinued this product, and perhaps that is why people are selling them for over $200 a bottle now? I spent a little over $30, which I thought was high. As best I can tell, this product was originally less than five dollars.

not sure it helped my engine... but at least it didn't cost a whole lot

It's perfect. My 1995 BMW K1100LT is very happy with getting the old gunk out.

Great product have used it for many years

good product for sticking items

CD2 works great if you have dirty sticky lifters,that's what it's for,if it doesn't work that's not your problem,i can't count how many old vehicles I used it in.if you keep your oil changed you shouldn't need it.

This is the best product on the market to clean tapping valve lifters and make them work silently again. Burnt oil varnish on rings and bearings are removed without harsh motor flush treatments. I have used this product for many years in several cars and have yet to find anything better.