what is suggested as for modification in order to run bio fuels on my suburban with 200k miles.

as for as changing hoses injectors or?????

thank you

Run bio for a couple of months at least to clean out your tank and lines then change your fuel filters. You will have to change your injector return lines to viton after a few thousand miles they will get soft & leak. Ditto for the fuel lines in the engine compartment get some sort of bd proof hose such as viton. Been on B100 for almost 4 years with my 95 burb good luck Dan