It might not be a KR but as far as auto fuel is concerned I've been using Turbo 108 additive as well as Marvel Mystery Oil in a fairly well aged Explorer. Find I can get 40-60 miles more per tank for the small trouble of pouring them in the tank before filling. Only use 1/4 of the Turbo 108 (8 fl. oz. from the ratio rite) per tank and find not only does the motor have a better sound, but almost never have to stomp on the pedal to get smooth acceleration without any knock and ping. $12 of additive goes a long way towards fuel economy. With prices what they are today every little bit helps.
Haven't read the fuel link provided here this morning yet but I'm looking forward to an informative read. Lots of things that apply to KRs work well elsewhere. Thank all of you for the most concise and useful information (well, most of the time) of any mailing list I've participated in. Back to lurking and learning. As always, fly safe. B. Ferguson
