Originally Posted By: autovelocity
I want to add my 2 cents to this conversation.
I've been using Shell 91 Nitro in my brand new 2015 GTI and I am very impressed by the fuel economy on the highway.
Driving at about ~100km/hr in 6th I managed to get 5.6L/100KM consumption. VW claims 7.xL/100KM on highway.
City driving is the same as advertised at about 9.5L/100km to 10.0L/100km
With Chevron 94 on the same highway trip I use up about 9L which seems very strange, but filling up again at the destination point does not lie. (same relative temperature, same weight and same speed)
How far is this trip, how many times has this been tracked, and how are you determining the amount of gas used (by the pump cutoff during fillup... ? very inaccurate).