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For those of you experiencing unusually cold weather, you may notice that you're milage is suffering. Make sure you're tires are properly inflated. The excessively cold weather can cause low pressure. Since the temperature drop last week, my tire pressure dropped from 30lbs to 25 lbs (no leaks) robbing me of 15-20% milage. Since filling up, i'm back to normal milage.
This is a timely reminder for all of our vehicles, vettes and other DD's. I notice more cars around town with flats this time of year than the rest of the year. While you are checking your tires, it might be a good time to have someone check you brake, turn and running lights to make sure they are all working.
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19
Originally Posted by 04cad
This is a timely reminder for all of our vehicles, vettes and other DD's. I notice more cars around town with flats this time of year than the rest of the year. While you are checking your tires, it might be a good time to have someone check you brake, turn and running lights to make sure they are all working.
For those of you experiencing unusually cold weather, you may notice that you're milage is suffering. Make sure you're tires are properly inflated. The excessively cold weather can cause low pressure. Since the temperature drop last week, my tire pressure dropped from 30lbs to 25 lbs (no leaks) robbing me of 15-20% milage. Since filling up, i'm back to normal milage.
You're correct about colder temps lowering tire pressure. My tire monitors alarm and show 24 psi for until I've driven it a few miles in 30-40 degree weather.
However, a lot of your MPG drop is from the cold temps affecting other things besides tire pressure. The fuel enrichment circuit is on longer, seals are tighter, transmission/differential oil is thicker, etc., etc.