Nissan Repair: Fuel economy, isopropal alcohol, cv boots

Question
Hi ; I drive a 94 Pathfinder, getting about 8 to 10 mpg, new plugs, filters, tires, front cv boots anda axels, clean fuel eshaust, plugs white, regular isopropal alcohol for the fuel injection jets,
any Help for me

Cheers

Answer
Hi Milo -

I know you said you just replaced the tires, however might want to ensure it is at proper pressure. Underinflation causes extra drag on the tires, causing excess fuel consumption.

Another reason could be your transmission. I assume you have an automatic? Might want to have it checked for slipping, especially at higher speeds when you cannot detect it sometimes.

When did you notice the high fuel consumption?

Let me know -
aloha
calvin