ThatsGuy
Member
With longer highway trips like Sydney to Brisbane my AFM auto SS does just under 9 l/100Kms. Even if a non AFM V8 you would do about 10l/100Km for highway travel. For comparison on the highway with a VS V6 to V8, about 5 or 6 years ago I had a VS Exec and also a VX II 5.7 Calais. I drove the Calais, and my wife drove the VS to Tweed heads from Sydney and the fuel consumption was almost the same, the V8 did use a little more but there was practically nothing in it. I ran both the VS V6 and the 5.7 VX Calais on 91 fuel. My AFM SS will get a bit better fuel consumption on highway trips than my VS Exec did (VS Exec just under 10l/100Km on the highway for me). I also had a SIDI SV6 auto which I traded on the SS about a year ago, it would do less than 8.5 l/100km on the highway (maybe about 8.3) on 91 fuel. Personally there is nothing wrong with a V6, except the known timing chain issue for 06 and 07 and I think early 08 models. If you buy 2009 upwards you should be OK if it has good service history, the Alloytecs are known for sludging. Personally I'd suggest servicing it at least say 3 times over two year period (so 8 months apart) and do it at least that frequency or better especially if Kms are high. Also if you go for a V6 I think an SIDI from very late 09 is the go. The 3.6 SIDI (in SV6 or Calais) is 210KW and the auto is 6 speed. The 3.0 in lesser models is also 6 speed auto.
Pointless arguing about 1-2 L over years of ownership!