2005 Dodge Ram mpg has dropped from 17.5 to 15.5

Tiny
GREGORY D
  • MEMBER
  • 2005 DODGE RAM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 81,300 MILES
In the last 4 months my mileage has dropped from 17.5 mpg to 15.5 mpg. I change oil and filters regularly, changed spark plugs and pcv valve last month, had a diagnostic test run with no issues (catylist, O2 sensor good, not missing). The engine sounds good. Would cooler to cold weather have any influence on mileage?
Wednesday, January 28th, 2009 AT 11:45 AM

2 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Yes the colder the richer fuel mix needs to be.
Was this
answer
helpful?
Yes
No
Wednesday, January 28th, 2009 AT 11:55 AM
Tiny
SKUNK APE
  • MEMBER
  • 2 POSTS
If they recently switch to E10 gas in your area that could cause a drop in mpg. I know people noticed 10% drop here in FL when they switched.
Was this
answer
helpful?
Yes
No
Thursday, January 29th, 2009 AT 2:54 PM

Please login or register to post a reply.

Related Engine Poor Mileage Content

VIEW MORE