I have a 2016 CX3 with 33,000 miles. I have been getting 31.7 m/g pretty consistently, which I thought was pretty good.
Yesterday i got an oil change and tire rotation at a different place than the shop I have been using. Since then I have driven 40 miles of the typical driving the 33,000 is made up of. My mileage was 33.8 m/g. That seemed pretty strange.
This morning I checked my tire pressure and found the rear were correct, but the front were 30 psi rather than the correct 36. (I check and correct my tire pressure regularly) Wouldn't lower tire pressure reduce the mileage rather than rise it? The other shop always put 33 psi in all 4 and I had to increase the front.
The new shop wrote on the receipt that they used the correct 0w-20. The other shop never did that; I assumed they used the right oil.
So my question... could the increase in mileage be from either shop using the wrong oil?
And a somewhat sillier question... why couldn't either shop fill the tires properly. (I suppose it is possible that the second shop never checked the air pressure but from the rotation and the cold weather they were all down 3 psi)
Yesterday i got an oil change and tire rotation at a different place than the shop I have been using. Since then I have driven 40 miles of the typical driving the 33,000 is made up of. My mileage was 33.8 m/g. That seemed pretty strange.
This morning I checked my tire pressure and found the rear were correct, but the front were 30 psi rather than the correct 36. (I check and correct my tire pressure regularly) Wouldn't lower tire pressure reduce the mileage rather than rise it? The other shop always put 33 psi in all 4 and I had to increase the front.
The new shop wrote on the receipt that they used the correct 0w-20. The other shop never did that; I assumed they used the right oil.
So my question... could the increase in mileage be from either shop using the wrong oil?
And a somewhat sillier question... why couldn't either shop fill the tires properly. (I suppose it is possible that the second shop never checked the air pressure but from the rotation and the cold weather they were all down 3 psi)
