Well the "cold air intake" I got it because I love the sound of the V8 with it on, also the X5 was averaging 800+ kms in the city in summer time.

it only has 95k on it not miles I do not wait tell the X5 to warm up to drive it, as it states in the manual start it and drive right away but slowly, I tested this last time it was -30 or so I let it sit there to warm up and after 15 mins the needle wasn't past the blue temp marker so I know the X5 warms up better when u start driving it right away.

Also since I got the X5 I tested like 7 gas stations and the best gas mileage I got was from PETRO CANADA was the best kms I got to the tank and 2s in line was SHELL V POWER gas.

I only put 91 oct gas in it, I have tried 94 from PETRO CANADA but the x5 didn't show any increase in power or mileage.

I also try all of the time to fill from PETRO CANADA gas stations only and not get mixed gas from other stations.

On last nights fill up I added a can of SEA FOAM to the tank, but im going to put the stock intake back in just for the winter and see if I get somewhat better gas mileage in the winter

__________________
2014 Jeep Rubicon unlimited 3.6
2005 X5 4.4i
2002 Jeep TJ 4.0 SOLD
1997 328I 4 door 2.8 SOLD