Good afternoon I would like to know how much fuel could I save we with changing tires from champiro vp1 gt radial 175 70 R 14 to hifly hf201 165 80 R14? Space this is for a 1990 Toyota Corolla 1.8 diesel 1 cc engine sedan. The stock tire size according to the owners manual is call 16580 R-13 and 175 70 R-13. I am are using Rim 14. I know that larger rims sizes increase Highway economy and smaller Rim sizes increase City economy. Which tire size would you recommend to me? Thank you
165-65-14 seems to have the lowest percentage difference from original tires, go for that then. then its 175-70-14, and then the last is 165-80-14
none, only thing which u will loose is traction n grip
