What kind of truck uses the 0W40? 10W30 Mobil 1 is great stuff. 5W30 is only necessary if you live somewhere that gets really cold.

I was half kidding with the 5W20. However, Ford has revised their recommended viscosity for a lot of their vehicles back to around 1995 to use the 5W20 oil. Their specification for the oil is pretty stringent. It would probably be fine in our engines.

I just recently increased the pressure of my tires from 31 to 36psi. I have also refrained from driving faster than 75mph(I used to go up to 85). I previously got 17-17.5 mpg. My last tanks were 18.5 mpg and 19 mpg.


'90 Montero XLS (Sold, sadly)
'95 Montero LS 160k
'03 Montero Limited 30k