2020 losing MPG

[Rick Staples]

I have a 2020 /Z71 with 75,000 miles. In the last couple of months, I have lost about 2-3 miles per gallon. Any thoughts?

 

[Doubeleive]

I have a 2020 /Z71 with 75,000 miles. In the last couple of months, I have lost about 2-3 miles per gallon. Any thoughts?

ease up on the big pedal
without any other data there is nothing else to say
I can add plugs/wires/02 sensors are rated for 100k, but there could be a variety of other causes, but primarily the big pedal is what causes the most loss of mpg

 

[L8T BURB]

I have a 2020 /Z71 with 75,000 miles. In the last couple of months, I have lost about 2-3 miles per gallon. Any thoughts?

A mix of winter blend fuel, using defrost/heat, likely more idling, and just the overall loss of efficiency in cold weather is my guess. You will very likely see an improvement in your MPG numbers as the cold weather breaks into Spring/Summer.

 

[RST Dana]

Manual calculations or letting your ride provide the info?
Warming up/idling more now?

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

As recommended above, perform mileage calculations based on actual miles driven and actual gallons pumped into the tank. Winter gasoline mixtures can cause the loss of a few mpg as well.

 

[Carfan]

I echo the view that the winter fuel mix is likely the issue. I use Fuelio for my 'Burb and I've experienced a nearly 1 mpg drop since December over a tank.

Also I agree you should make sure you're getting the oil changed with high quality synthetic. It's good for fuel economy and for the engine.