Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Interpreting Coolant Testing Strips

Thread Tools
 
Search this Thread
 
Old Jun 29, 2025 | 10:45 AM
  #1  
Lex2002's Avatar
Lex2002
Thread Starter
|
Cargo Master
Photogenic
Photoriffic
Shutterbug
Liked
Joined: Aug 2011
Posts: 2,319
Likes: 89
Interpreting Coolant Testing Strips

I flushed my coolant in summer 2019. Wow how time flies. I used Fleetpride or some such thing brand that from a large truck parts chain.

Anyway I checked with coolant test strip and after 90 seconds it clearly showed I'M DUE for a flush...



Then I look at the strip this morning and it has changed:



Does interpretation need to happen within just a few minutes?
 
Reply
Old Jun 29, 2025 | 12:08 PM
  #2  
RigCity's Avatar
RigCity
Laughing Gas
5 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jan 2017
Posts: 1,216
Likes: 94
It should say on the directions before I changed from the green coolant to ELC when using the fleet guard said take reading within x amount of seconds
 
Reply
Old Jun 30, 2025 | 09:35 AM
  #3  
Lex2002's Avatar
Lex2002
Thread Starter
|
Cargo Master
Photogenic
Photoriffic
Shutterbug
Liked
Joined: Aug 2011
Posts: 2,319
Likes: 89
It says to wait 90 seconds but doesnt say if the color continues to change after 1 hour or what have you.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lex2002
1999 - 2003 7.3L Power Stroke Diesel
3
Jun 3, 2024 08:13 AM
SC_Dave
1999 - 2003 7.3L Power Stroke Diesel
2
Apr 27, 2024 01:51 AM
Junktownbill99
1987 - 1996 F150 & Larger F-Series Trucks
5
Apr 11, 2024 07:07 PM
AaronB88
1999 - 2003 7.3L Power Stroke Diesel
12
Sep 5, 2021 09:40 AM
High76boy
6.0L Power Stroke Diesel
3
Jun 8, 2014 12:46 AM




All times are GMT -5. The time now is 07:18 PM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE