Thermostats and economy
Posted: Fri Mar 19, 2010 9:15 pm
Just thought I'd raise a topic that applies to all fuels but surprised me on lpg.
My SAAB 93 had a temp gauge that seemed to have a mind of it's own, frequently going to the cold section and then going up again. During this winter it got worse and sometimes gave up altogether. Eventually the engine light came on and reading the code it said the coolant was out of range. So, I did the obvious and replaced the thermostat. Now the needle is sitting rock steady in the middle of the range. Great. But, on a recent trip to London I did 250 miles on 45 litres. I wasn't hanging about either, 70+ most of the time on the motorway. This means around 25mpg. Before, I was getting around 22-24, but mostly at the lower end. Is your temperature gauge sitting satisfactorily?
My SAAB 93 had a temp gauge that seemed to have a mind of it's own, frequently going to the cold section and then going up again. During this winter it got worse and sometimes gave up altogether. Eventually the engine light came on and reading the code it said the coolant was out of range. So, I did the obvious and replaced the thermostat. Now the needle is sitting rock steady in the middle of the range. Great. But, on a recent trip to London I did 250 miles on 45 litres. I wasn't hanging about either, 70+ most of the time on the motorway. This means around 25mpg. Before, I was getting around 22-24, but mostly at the lower end. Is your temperature gauge sitting satisfactorily?