kennycoulter Posted February 21, 2020 Share Posted February 21, 2020 I constantly check my gas mileage to know if anything is up with my car. I have been getting about 5 mpg worse than normal. The transmission has already been replaced with a low mileage unit. I was already having the lower mpg's before having another trans fluid change. I do not seem to have any brakes dragging. I recently changed the spark plugs hoping that might clear it up a little (I sometimes also feel a slight dip or surge in idle). What the heck else can I look towards, if I am not having any codes come up? OH! 2013 2.0 Turbo titanium awd 0 Quote Link to comment Share on other sites More sharing options...
bbf2530 Posted February 21, 2020 Share Posted February 21, 2020 (edited) 36 minutes ago, kennycoulter said: I constantly check my gas mileage to know if anything is up with my car. I have been getting about 5 mpg worse than normal. The transmission has already been replaced with a low mileage unit. I was already having the lower mpg's before having another trans fluid change. I do not seem to have any brakes dragging. I recently changed the spark plugs hoping that might clear it up a little (I sometimes also feel a slight dip or surge in idle). What the heck else can I look towards, if I am not having any codes come up? OH! 2013 2.0 Turbo titanium awd Hi Kenny. Other than blindly Internet guessing at possible mechanical/electronic issues, here are a few non-problem MPG stealers: First, winter fuel blends will lower mileage. Also, now that it is winter (especially where you are located), are you using remote start often? That would lower fuel mileage quite a bit. And if you are using the AUTO setting on the Climate Control system (and/or Front Defrost) with the cold weather (if you have EATC or DATC), that will noticeably lower fuel mileage. May not seem like much individually, but if you add them up, they can considerably lower fuel mileage. Just a few non-mechanical problems possibilities. Keep us updated and good luck. Edited February 21, 2020 by bbf2530 0 Quote Link to comment Share on other sites More sharing options...
kennycoulter Posted March 4, 2020 Author Share Posted March 4, 2020 Thank you very much for the insight. Those are all good points. I am actually comparing gas mileage compared to previous years, but of course this year we are not having the severe cold as other years. The fuel additives makes the most sense. I DO still use the remote start at times, but it never sits running for TOO long. 0 Quote Link to comment Share on other sites More sharing options...
eric_eric_eric Posted March 23, 2020 Share Posted March 23, 2020 On 2/21/2020 at 11:42 AM, kennycoulter said: The transmission has already been replaced with a low mileage unit. Does that mean the MPG issues happened after the new transmission was placed in the car? If so, perhaps that is the source of the issue but I don't know how precisely that would affect it. 0 Quote Link to comment Share on other sites More sharing options...
kennycoulter Posted August 18, 2020 Author Share Posted August 18, 2020 On 3/23/2020 at 2:37 PM, eric_eric_eric said: Does that mean the MPG issues happened after the new transmission was placed in the car? If so, perhaps that is the source of the issue but I don't know how precisely that would affect it. Way later. Transmission was replaced about 2.5 years ago, so it was in the car for roughly 2 years before the MPG started to drop a little. INTERESTINGLY, the trans shop DID plug something or eliminated a hose when the swap was done. I didn't notice the plug until I changed the spark plugs back in February. I will try to post the picture that I took of it. I couldn't find a reference pic of how it SHOULD look, and my Focus ST didn't have the same hose (manual). 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.