Signum 2.0T. Couple of questions???

**gobezza** · 29th December 2007, 15:36

Just bought a 53 reg 2.0 Turbo Signum. Great car, loads of space but a little on the thirsty side.

Averaging about 23mpg increases a little with motorway driving but not much. I had a T reg Astra a while ago that didnt warm up properly had it fixed under warranty and the fuel consumption was better.

The engine runs at a steady 85 C, every Vauxhall i have had in the past ran at 90C. Do u think this could be the problem?

Also outside temp is showing either "F" or -35C. Sensor problem?

Cheers

**The-Bandit** · 29th December 2007, 17:03

Well you get more than me mate, i got a 04 2.0T Siggy and its also thirsty, getting about 20 mpg around town

Bit of a diff from the diesel Vectra i had ...38mpg round town

**ed taylor** · 29th December 2007, 17:05

Sounds about what I get from my 3.2 V6. Get,s worse if my right foot gets heavy though.

**john_k_sri** · 29th December 2007, 18:06

Figures sound about right. I have a 2.0T Vectra which is a little more economical than yours, but it is lighter and slightly more aerodynamic than your Siggy.

**Duncan** · 29th December 2007, 18:20

I'll get around 30/31 on a long motorway run, around 26/27 combined and can drop to 22 on just town driving - so if you're not getting much more than around 24 even on a long run, then it doesn't sound quite right. Those figures BTW are based on my averages over a length of time - when I had the BSR Stage 1, but they didn't really change from having it as standard.

**gobezza** · 29th December 2007, 19:02

What about the running temp, like i say it never gets highter than 85C, every vauxhall i have had ran at 90C dead on?

**ed taylor** · 29th December 2007, 19:20

Originally Posted by gobezza

What about the running temp, like i say it never gets highter than 85C, every vauxhall i have had ran at 90C dead on?

Not even when you are stuck in traffic for a while. my 3.2 will go to 100 if I am in traffic for a while, but normal is about 85 to 87.5. It might be that your thermostate needs changing?

**Duncan** · 29th December 2007, 21:08

Originally Posted by gobezza

What about the running temp, like i say it never gets highter than 85C, every vauxhall i have had ran at 90C dead on?

Mine sits bang on 85C virtually all the time. Very occasionally it'll edge up between 85 and 90 on a warm day or after a spirited run, or it'll touch 90 if stuck in traffic. I've never seen it past 90 ever.