06-01-2009, 10:10 PM
I have a really dumb question, again. I changed the oil in my Focus, and have changed my "fuel provider" to Shell, using there nitrogen "flavoured" gasoline. I've noticed better fuel economy since I've done both of these items. The REALLY DUMB QUESTION is, is it the oil change, or the fuel, or both?
Proud member of the CDan nation.
2000 White ZTS: retired
2012 Frosted Glass SEL: active
K&N Filter.....
2000 White ZTS: retired
2012 Frosted Glass SEL: active
K&N Filter.....