Motoring Discussion > Increasing tyre pressures by 20% for economy??? Miscellaneous
Thread Author: Jacks Replies: 39

 Increasing tyre pressures by 20% for economy??? - Jacks

>>
>> A loosened-up engine is what you need so get in your nice new car and
>> give it some proper driving.
>>
>> In other words don't pump up the tyres pump up the gas. :)
>>
I'm doing that - following the HJ recommended advice for running in a diesel

as in

Leave factory fill of oil for the first year or 10,000 miles. For the first 1,000 miles do not exceed 3,000rpm, but make sure you reach 3,000rpm regularly. For the next 1,000 miles (to 2,000 miles) do not exceed 3,500rpm, but make sure you reach 3,500rpm regularly. For the next 1,000 miles (to 3,000 miles) do not exceed 4,000rpm, but make sure you reach 4,000rpm regularly. For the next 1,000 miles (to 4,000 miles) do not exceed 4,500rpm, but make sure you reach 4,500rpm at least a couple of times a week. After that, no limit, but make sure you continue to hit 4,500rpm through the gears several times a week.

I've had diesels before, a couple of company Vectra 2.0 models, and didn't notice much difference as the mileage increased right up to 140K.
Parkers Guide had an estate version the V50 with the same engine on long term test and the reviewer commented a couple of times about the (poor) fuel consumption. He ended up averaging 45mpg over 10K miles and he remarked he had to drive quite carefully - sticking to 70 on the m/way - to achieve this.

Maybe the Volvo S40 is heavier than the Focus CC3 etc

Jacks
 Messages Author Date
 Increasing tyre pressures by 20% for econo..  Jacks 26 Apr 10 14:46
 Increasing tyre pressures by 20% for econ..  idle_chatterer 26 Apr 10 15:28
 Increasing tyre pressures by 20% for econ..  Old Sock 26 Apr 10 16:23
 Increasing tyre pressures by 20% for eco..  Zero 26 Apr 10 16:43
 Increasing tyre pressures by 20% for ec..  Old Navy 26 Apr 10 17:06
 Increasing tyre pressures by 20% for ec..  Number_Cruncher 26 Apr 10 17:08
 Increasing tyre pressures by 20% for e..  Zero 26 Apr 10 17:31
 Increasing tyre pressures by 20% for..  Old Sock 26 Apr 10 17:36
 Increasing tyre pressures by 20% fo..  Zero 26 Apr 10 17:45
 Increasing tyre pressures by 20% f..  Tigger 26 Apr 10 17:49
 Increasing tyre pressures by 20% ..  Zero 26 Apr 10 18:01
 Increasing tyre pressures by 20%..  Runfer D'Hills 26 Apr 10 18:26
 Increasing tyre pressures by 2..  Boxsterboy 27 Apr 10 12:41
 Increasing tyre pressures by 20% for..  Number_Cruncher 26 Apr 10 19:20
 Increasing tyre pressures by 20% fo..  Lygonos 27 Apr 10 02:27
 Increasing tyre pressures by 20% f..  idle_chatterer 27 Apr 10 12:07
 Increasing tyre pressures by 20% for eco..  mikeyb 27 Apr 10 18:57
 Increasing tyre pressures by 20% for econ..  FotheringtonTomas 27 Apr 10 13:02
 Increasing tyre pressures by 20% for eco..  Dr_Rubber 27 Apr 10 13:18
 Increasing tyre pressures by 20% for ec..  Lygonos 27 Apr 10 14:55
 Increasing tyre pressures by 20% for e..  Jacks 27 Apr 10 15:44
 Increasing tyre pressures by 20% for..  Oldgit 27 Apr 10 16:17
 Increasing tyre pressures by 20% for..  Old Navy 1 May 10 09:21
 Increasing tyre pressures by 20% for ec..  FotheringtonTomas 27 Apr 10 16:18
 Increasing tyre pressures by 20% for e..  Oldgit 27 Apr 10 19:03
 Increasing tyre pressures by 20% for e..  tyro 27 Apr 10 19:17
 Increasing tyre pressures by 20% for..  Armel Coussine 27 Apr 10 19:26
 Increasing tyre pressures by 20% fo..  Brentus 27 Apr 10 23:23
 Increasing tyre pressures by 20% f..  Number_Cruncher 28 Apr 10 00:28
 Increasing tyre pressures by 20% ..  Dr_Rubber 28 Apr 10 19:50
 Increasing tyre pressures by 20%..  Cpt. Flack 1 May 10 00:15
 Increasing tyre pressures by 20% for econ..  L'escargot 1 May 10 07:24
 Increasing tyre pressures by 20% for eco..  Iffy 1 May 10 08:07
 Increasing tyre pressures by 20% for ec..  L'escargot 1 May 10 09:38
 Increasing tyre pressures by 20% for..  Jacks 1 May 10 11:58
 Increasing tyre pressures by 20% for e..  Iffy 1 May 10 12:40
 Increasing tyre pressures by 20% for eco..  Baz 1 May 10 08:11
 Increasing tyre pressures by 20% for ec..  Hard Cheese 3 May 10 08:07
 Increasing tyre pressures by 20% for e..  Perky Penguin 5 May 10 12:09
 Increasing tyre pressures by 20% for..  FotheringtonTomas 5 May 10 13:07
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