XC90 Mods for MPG.

[LuisM]

Thanks for the add. Im finding lots of useful info here. Quick question for my fellow 90 3.2L guys. Is there any upgrades to help with fuel mileage? To me it would be an awesome little SUV if it only got better MPG. Thanks in advance,Luis.

[jimmy57]

for most any "normal" passenger car the MPG has been optimized. Only some sport models may have gear ratio changes (lots of money and almost never pay off from MPG increase). The air cleaner and exhaust system upgrades help performance but MPG is at the other end of the throttle application from where these mods work. There are some minimal MPG increases with tuner loader programs and those usually require a colder thermostat. The program MPG gains are from more advanced ignition timing and require 100% of the time to use highest octane fuel. The extra cost of the fuel eats any savings from reduction in gallons burned over time. The only ready one is to drive like you peed in the tank and don't want the fuel pump to suck it up. E a s y throttle application and slow build to travel speed. Anticipate stops and release throttle early. No idling when stopped off roadway. I can get 20% or more increase doing these things but my patience runs out in a few days to maybe two weeks and then my speed creeps up and my foot gets heavy but my smile also returns.