Volvo Owners Club Forum - View Single Post - D5 (D5244T to 2005)

palwing · Dec 19th, 2008, 21:19

Car is running sweet since the injector (x5) refurbishment and starts 1st turn even at sub zero temps. However, before the Injector problem, the computer was showing over 42mpg, but now it's showing 37.5mpg. Same sort of journeys.

Recently, I reset the computer before a long motorway run from Cornwall to Norfolk and filled the tank up to the brim. The computer showed 43.3mpg on arrival in Norfolk and I was cruising at err..cough...motorway speeds all the way. Exeter to Norwich via M5/M4/M25/M11/A11 in under 5 hrs..and I mean well under. The fuel guage was at 1/2 tank after 340 miles and the light came on after 540 miles.

However, since then the MPG shows 37.5mpg now with mixed Norfolk driving.

The car has just been serviced and they can't find any probs on the diagnostics but have replaced the fuel filter and checked the brakes, etc. New tyres have just been fitted and running at 36psi (225/45/17) Feels a little hard but I have a full boot area most of the time.

I am putting the increased fuel consumption down to the near freezing temps at the moment.

Dec 19th, 2008, 21:19	#12
palwing Member Last Online: Sep 10th, 2023 19:32 Join Date: May 2007 Location: OneBoat	Update Car is running sweet since the injector (x5) refurbishment and starts 1st turn even at sub zero temps. However, before the Injector problem, the computer was showing over 42mpg, but now it's showing 37.5mpg. Same sort of journeys. Recently, I reset the computer before a long motorway run from Cornwall to Norfolk and filled the tank up to the brim. The computer showed 43.3mpg on arrival in Norfolk and I was cruising at err..cough...motorway speeds all the way. Exeter to Norwich via M5/M4/M25/M11/A11 in under 5 hrs..and I mean well under. The fuel guage was at 1/2 tank after 340 miles and the light came on after 540 miles. However, since then the MPG shows 37.5mpg now with mixed Norfolk driving. The car has just been serviced and they can't find any probs on the diagnostics but have replaced the fuel filter and checked the brakes, etc. New tyres have just been fitted and running at 36psi (225/45/17) Feels a little hard but I have a full boot area most of the time. I am putting the increased fuel consumption down to the near freezing temps at the moment.