R35 GTR
I was playing about with tyre pressures earlier and my rear passenger side was zero! And my mpg started at about 40 a few weeks ago, and has now gone down to 27.2, would this be the cause of it? My driving style hasnt changed at all over this time period.
or should i look elsewhere.
I'm so glad i checked this as I'm back to uni and on the motorway again tomorrow!

or should i look elsewhere.
I'm so glad i checked this as I'm back to uni and on the motorway again tomorrow!