Dirty vs. Clean Air filter - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 2 Old 09-22-2010, 08:26 AM Thread Starter
Compression Ignition Addict
jesilvas's Avatar
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Dirty vs. Clean Air filter

So usually you hear "If you change your air filter you'll get better gas mileage." May be true. I've seen a magazine article (some diesel one) about how it didn't really affect mileage but response and power more than anything. Also it will affect your EGTs A WHOLE FREAKIN LOT
Maybe you guys know this but it just kinda donned on me. Just replaced my DIY filter and used a 4" exhaust piece instead of a 3.5" PVC coupling (almost the same size). Usually it would take forever, say 5+ mins to idle down to 300*. I can get there in about 1. Just thought I'd share and enlighten someone else who never really thought of it like I didn't before

2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
jesilvas is offline  
post #2 of 2 Old 09-22-2010, 07:05 PM
Serving Our Country!
Cutty72's Avatar
Join Date: Sep 2009
Location: Fishing country
Posts: 409
Thanks: 5
Thanked 7 Times in 7 Posts
Mentioned: 0 Post(s)
Quoted: 11 Post(s)
Feedback Score: 0 reviews
Yeah, when I bought my pickup, the air filter was packed full of mud and dirt, can't believe it even ran. Bought a new one right away, didn't help mileage any, but sure helped the get up and go.

'01 F250 Lariat Crew Shortbed
Tunes by Swamps
4" Turbo back MBRP w/ muffler
6637 intake

3662 Maintenance Company Supply NCO
Cutty72 is offline  

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome