Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

Coolant additive question (VC-8)

Thread Tools
 
Search this Thread
 
Old Jan 30, 2023 | 10:28 AM
  #1  
Swhittle's Avatar
Swhittle
Thread Starter
|
Cross-Country
Joined: Dec 2021
Posts: 66
Likes: 6
Coolant additive question (VC-8)

Hey guys,


I am going to perform the following coolant flush procedure because my truck was filled with the wrong color coolant and I need to replace the radiator anyways ,https://www.powerstrokehub.com/service/7.3-powerstroke-coolant-flush.html



After a series of distilled water drain/fill/run cycles, there I’ll eventually be distilled water left in the system so to properly maintain a 50/50 mixture of concentrate/water I am going to first add 3.6 gallons of the concentrate straight and then fill with distilled water from there. Starting with the correct concentrate first will ensure 50/50 by adding water from there. My question is around the additive. Looks like the additive is calling for 4oz per gallon of system capacity so that’s 32 oz or two of the pint bottles. Depending on the order I add that to the system, won’t that account for 32 oz less water?

Is that a problem?




 
Reply
Old Jan 30, 2023 | 10:52 AM
  #2  
knottyrope's Avatar
knottyrope
Lead Driver
10 Year Member
Photogenic
Shutterbug
Loved
Joined: Apr 2016
Posts: 7,202
Likes: 1,340
From: Bahstun
buy the AF mix that has it already?

add AF, add SCA, add water to top it off

pulling rear block drains during the flush?

 
Reply
Old Jan 30, 2023 | 11:32 AM
  #3  
Swhittle's Avatar
Swhittle
Thread Starter
|
Cross-Country
Joined: Dec 2021
Posts: 66
Likes: 6
Originally Posted by knottyrope
buy the AF mix that has it already?

add AF, add SCA, add water to top it off

pulling rear block drains during the flush?
this process just has more drain/fill/run cycles to account for not doing the block plugs. I’m using Motorcraft VC-5 (green) so I’ll be using the VC-8 Ford additive. From what I picked up on other threads, it looks like I subtract the amount of necessary additive (32oz) from the initial 3.6gallons of concentrate and then continue to fill with water from there.

so the 32oz of necessary additive comes out of the concentrate 50% (32oz less concentrate). Does that sound right?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
corksil
1999 - 2003 7.3L Power Stroke Diesel
12
Mar 7, 2020 04:39 AM
Liquid10Rider
1999 - 2003 7.3L Power Stroke Diesel
2
Aug 15, 2011 08:55 AM
6litrefan
6.0L Power Stroke Diesel
4
Sep 20, 2009 09:21 PM
maa139
Cooling, Heating, Ventilation & A/C
3
Nov 21, 2004 09:05 AM
ExcellentRed
Cooling, Heating, Ventilation & A/C
3
Aug 12, 2004 02:09 PM




All times are GMT -5. The time now is 12:58 AM.

story-0
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-02 21:45:57


VIEW MORE
story-1
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-2
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-3
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-4
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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