I have to say with the 40% cleaning claim (up from 15%) I am seriously considering going from PP to PYB. I always do 5K OCIs due to warranty and the major attraction for me with PP was the supposed cleaning ability.
However, I do a lot of short trips (5-20 miles) and several cold starts per day (~4). Thus I'm on the fence.
However, I do a lot of short trips (5-20 miles) and several cold starts per day (~4). Thus I'm on the fence.