Fuel consumption - MPG - S5 TII

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DKWW2000
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Fuel consumption - MPG - S5 TII

Post by DKWW2000 » Mon Aug 19, 2019 9:16 pm

We all are aware that our cars by virtue of the engine are not renown for their fuel efficiency so I have been monitoring mine. A trip to RRG & back was a good journey to find out what I am getting.
The trip was mostly motorway except J6 to Shelsley Walsh, in Total 322mls. I used 12.3 gals (56 ltr) -:- 4.55 = 26.1 mpg which at a steady speed of ?? mph. Much better than I thought, FB is about 30+
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Re: Fuel consumption - MPG - S5 TII

Post by ian65 » Mon Aug 19, 2019 11:30 pm

26.1 is pretty good for a 13B Turbo I reckon. it's been a long time since I worked out my consumption in a FB but I seem to remember it was low to mid 20's :?
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Re: Fuel consumption - MPG - S5 TII

Post by KiwiDave » Tue Aug 20, 2019 12:29 am

Impressive. I remember being appalled by the fuel consumption of my S5 turbo back home. This was compared to a 12a bridge port on a Nikki with mechanical secondaries which meant I could cruise round on primaries all day so I could return 30 mpg without too much trouble (but not a lot of excitement).
Maybe an o2 sensor was bad or some such thing on my FC? You should be well pleased with your result. :thumbup:
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Re: Fuel consumption - MPG - S5 TII

Post by richrx » Tue Aug 20, 2019 2:06 pm

When I daily drive my t2 cab I recall 20-25mpg average from it including short journeys. The fb was similar, the FD was 12-18mpg though....

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Re: Fuel consumption - MPG - S5 TII

Post by rotor_dude » Fri Sep 13, 2019 3:41 pm

is it a uk thing ?

ive never taken note on any of my cars for mpg, especially rotary engined

unless its going through lots more than usual, indicating an engine fault etc
never done it

dont understand why you would on a sports car lol
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Re: Fuel consumption - MPG - S5 TII

Post by DKWW2000 » Fri Sep 13, 2019 7:33 pm

rotor_dude wrote:
Fri Sep 13, 2019 3:41 pm
is it a uk thing ?

unless its going through lots more than usual, indicating an engine fault etc
never done it
dont understand why you would on a sports car lol
How would you know if its using more if you do not know what is normal? :geek:
Just another bit of information on driving habits/engine health/tuning always handy for owners/new owners as a bench mark.
As someone once said......."You do not know what you don't know until you know it" rdg
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander

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