Hello I have bought a Peugeot sv 50 with 56,000km The previous owner has driven a mixture because the oil pump had acknowledged her spirit and had suffered a Kolbemfresser. Since then he mixes 1:50 I now have to drive a longer distance with it from 100km country road. I have unfortunately no experience with mixture because of my question Do I have to change the mixture so drive fatter if I drive perennially or do you have tips for me???