ChipperA6 Posted March 9 Share Posted March 9 Hi All, Not sure if anyone else has had this issue but I have just purchased a used A6 diesel (2020) and my mpg are shockingly low. My drive to work is 2 miles side roads and 33 miles motorway. My last A6 diesel (2017) used to do the journey with between 55/65mpg depending on how I drive, the new A6 is struggling to do 45/50mpg. both cars are 2.0lt engines, the first was 190bhp and the latest is 204bhp. I also have an Audi TT petrol (2021) 2.0ltr 245bhp and driving the same way I can get between 35/40mpg. working on the difference in fuel cost, it actually works out cheaper to take my TT to work? Is anyone else seen this issue? Thanks Quote Link to comment Share on other sites More sharing options...
Stevey Y Posted March 9 Share Posted March 9 4 hours ago, ChipperA6 said: Hi All, Not sure if anyone else has had this issue but I have just purchased a used A6 diesel (2020) and my mpg are shockingly low. My drive to work is 2 miles side roads and 33 miles motorway. My last A6 diesel (2017) used to do the journey with between 55/65mpg depending on how I drive, the new A6 is struggling to do 45/50mpg. both cars are 2.0lt engines, the first was 190bhp and the latest is 204bhp. I also have an Audi TT petrol (2021) 2.0ltr 245bhp and driving the same way I can get between 35/40mpg. working on the difference in fuel cost, it actually works out cheaper to take my TT to work? Is anyone else seen this issue? Thanks Hi its probably that the newer car is euro six + 2 and thats where the extra horsepower comes from, more fuel and air, just a theory. Steve. Quote Link to comment Share on other sites More sharing options...
ChipperA6 Posted March 10 Author Share Posted March 10 No, I looked at the spec and I should be getting 'combined' 62.8mpg and 'Extra Urban' 67.3mpg... less the real life factor. last night I set cruise control to 65mph and only got 54mpg, my old A6 used to get 65+mpg. I just emailed the dealership for answers. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted March 11 Share Posted March 11 I always went off the rule what ever figures the dealer claimed, take 10mpg off them for a roughly realistic figure 1 Quote Link to comment Share on other sites More sharing options...
ChipperA6 Posted March 13 Author Share Posted March 13 Ok, I spoke with Audi's engineer and what he said was crazy but it worked. He said that the 'efficiency' setting does not work with my driving pattern and that I should switch it to 'Auto'. I did this and i'm now getting those high mpg again. It works so I am happy but it's a bit misleading. People who don't know this and are thinking they are doing the best thing by using 'efficiency' mode are losing 10mpg, on a 60ltr tank is 150miles less. 1 Quote Link to comment Share on other sites More sharing options...
Steve Q Posted March 15 Share Posted March 15 Glad you got sorted 🙂 Quote Link to comment Share on other sites More sharing options...
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