Exxon v Shell MPG

dave11 · 12-26-2021, 11:31 AM

My local Shell station quit credit card transactions at the pump. I have a Shell card and they still require I pay inside due to drive offs. Since I always fill the tank, there is no way to pay in advance. I then went to an Exxon station and filled up as usual.

My mileage has averaged around 19 MPG or so since I bought the car new. I am retired, but this is my daily driver. I don't drive a lot, but I do try to get the oil temp over 180 degrees every time I drive. I just filled up again at Exxon. My mileage for this tank was 16.5 MPG. That is lower than it has ever been.

Up until this time I have never put in any gas but Shell premium. Any ideas why my mileage would drop so drastically with Exon?

12-26-2021, 11:31 AM	#1 (permalink)
dave11 Base Member Join Date: Mar 2015 Location: Tampa Bay Posts: 141 Drives: 2020 370Z 6M Rep Power: 2980	Exxon v Shell MPG My local Shell station quit credit card transactions at the pump. I have a Shell card and they still require I pay inside due to drive offs. Since I always fill the tank, there is no way to pay in advance. I then went to an Exxon station and filled up as usual. My mileage has averaged around 19 MPG or so since I bought the car new. I am retired, but this is my daily driver. I don't drive a lot, but I do try to get the oil temp over 180 degrees every time I drive. I just filled up again at Exxon. My mileage for this tank was 16.5 MPG. That is lower than it has ever been. Up until this time I have never put in any gas but Shell premium. Any ideas why my mileage would drop so drastically with Exon?

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