18-04-2013, 08:30 AM
Before we start if your stat isn't working properly replace it. A New one for an XU10 direct from pug retails at £18.04 so not even expensive to replace especially with a discount or a pattern part. Easy job to replace too, just a few bolts and some coolant.
Pros -
Erm, none if your stat is working properly.
Cons -
Never get hot heaters
Reduced power
Reduced mpg
Higher emissiions
Oil temp will never get hot so wont burn off its contaminants
Oil pump has to work harder to pump thick cold oil
Less effective engine lubrication so more chance of premature engine wear
Pros -
Erm, none if your stat is working properly.
Cons -
Never get hot heaters
Reduced power
Reduced mpg
Higher emissiions
Oil temp will never get hot so wont burn off its contaminants
Oil pump has to work harder to pump thick cold oil
Less effective engine lubrication so more chance of premature engine wear