I met up with thundergod just to try out the threebond and I was really pleased with the results after only 1 application of the threebond. it was basically just 30 mins of my time for him to spray the conditioner and leave it to bond then he continually sprayed the can into the engine while the engine was being revved. after applying the threebond, my engine felt smoother during pickup, gear changes was definitely a touch smoother and the idling was better. definitely recommend this to other people. I'll definitely buy a few more for my other cars in the future.