TheDieselPage.com Forums
 
The Diesel Page Forums

2018 - TDP's 22nd Anniversary
What's New | Feature Articles | Product Reviews | Member's Area | Free Forum Registration
Duramax 6600 Diesel Page | Advertiser's Section | Classified Ads | The Diesel Page - Publications


Go Back   TheDieselPage.com Forums > 2001-2019 Chevrolet & GMC 2500HD/3500 Light Trucks > Duramax Diesel Performance Shop
Register FAQ Members List Photo Album Mark Forums Read

Duramax Diesel Performance Shop What's it take to make big power? Tips on Duramax diesel performance products, improving fuel economy, power upgrades, exhaust systems, and programming. From a little to a lot, find out what it takes. Post a question or offer your advice.

Reply
 
Thread Tools Display Modes
  #11  
Old 01-16-2010, 10:03 PM
JohnC's Avatar
JohnC JohnC is offline
Proud Deplorable
 
Join Date: Jan 2001
Location: New Hampshire - Live Free or Die
Posts: 5,278
Default

Gee, all I did was drive the same boring route day in and day out, day after day, week after week, month after month... and record every drop of fuel that went into the engine. My mileage calculations from tank to tank were remarkably consistent. Then I started using the additive and repeated the same process. I think I threw out tanks where I was on a long trip. Probably 20K miles without and 20K miles with.
__________________
"Need" - Wanting to get someone else's money.
"Greed" (formerly meant what "need" means today) - wanting to keep your own.
"Compassion" - a politician's willingness to arrange the transfer.
-Joseph Sobran

Current oil burners: MB 350SDL, Kubota 7510
Gone but not forgotten: '87 F350 7.3, '91 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6
Reply With Quote
  #12  
Old 01-17-2010, 07:29 AM
Mark Rinker's Avatar
Mark Rinker Mark Rinker is offline
Enthusiast
 
Join Date: Jun 2003
Posts: 5,813
Default

- Were the 20K mile tests conducted during the same months, with the same weather? How many gallons of winter blend fuel were burned, vs. regular #2? Same fuel station? Same fuel quality and source throughout the entire 40K test?

- Every Duramax I've owned has recorded slightly better mileage, the older it got - as long as the injectors were in good shape. Never saw >20mpg unloaded with the 2002 until it was on the second set of injectors and nearing 200K miles on the clock. How could this observation effect your results, using your "20K without treatments, 20K with" method, as a control group - especially if you started the tests when the truck was relatively new?

- If you drove your truck 20K miles without any additives, its likely you then had deposits forming - that were lowering your mileage. Start using additives - and you will likely find your way back to your engine's MPG potential, in a few tankfuls. What if you could maintain your mileage potential by adding only one bottle every 3rd tankful? 5th tankful? Only when you begin to see a consistant, repeating decrease in mileage...?

IMO - Meaningful controls for an accurate test of fuel additive ROI are impossible with one truck - or even a fleet of 'similar' trucks.
__________________
2011 Chevrolet Tahoe 5.3L daily driver
  • Previous owner of two 1994 6.5L K3500s, '01, '02, and '05 6.6L K2500s, '04 C4500, '06 K3500 dually, '06 K3500 SRW, '09 K3500HD SRW, '05 Denali
  • Total GM diesel miles to date : ~950K

Last edited by Mark Rinker; 01-17-2010 at 07:40 AM. Reason: N
Reply With Quote
  #13  
Old 01-17-2010, 01:58 PM
JohnC's Avatar
JohnC JohnC is offline
Proud Deplorable
 
Join Date: Jan 2001
Location: New Hampshire - Live Free or Die
Posts: 5,278
Default

a) It was a 6.5, not a Duramax

b) The test was over several years. The truck had 28,000 miles when I started. For the first two years or so I did not use an additive. Then I used Stanadyne for at least the next two years, winter, spring, summer and fall. I did not stop using it. Fuel came mostly from one station over the entire period. Routes and conditions were almost always the same. I recorded every drop of fuel and what type of driving. My mileage was consistent and repeatable. I got (IIRC) 5% better mileage with the additive; just enough to cover the cost of the additive.

c) If the additive was reducing or preventing deposits, so be it. The mechanism is immaterial; the results speak for themselves.

d) I feel it is easier to get meaningful results with one truck doing the same thing over the same routes with the same load day in and day out than with a fleet of trucks driven by different drivers and pulling different loads to varied destinations.

e) I am a trained scientist with a BS, an MS and even an Associate degree, and am familiar with the scientific method. I have confidence in my results.

QED
__________________
"Need" - Wanting to get someone else's money.
"Greed" (formerly meant what "need" means today) - wanting to keep your own.
"Compassion" - a politician's willingness to arrange the transfer.
-Joseph Sobran

Current oil burners: MB 350SDL, Kubota 7510
Gone but not forgotten: '87 F350 7.3, '91 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6
Reply With Quote
  #14  
Old 10-29-2018, 02:23 PM
wmholden wmholden is offline
Newbie
 
Join Date: Oct 2018
Location: San Antonio Texas
Posts: 3
Default Bottom Line

Today's diesel has horrible lubricity and one should always use additives in EVERY tank. "If you're running a diesel and you ain't putting something in your fuel you're an idiot" - owner of Turbo Shop in Louisiana. He rebuilds injectors for a living and has done so for decades. So I pour that cheap ($15 per gallon) red stuff in my LLY at every fill up. So far so good.
Reply With Quote
  #15  
Old 10-30-2018, 06:22 AM
trbankii's Avatar
trbankii trbankii is offline
Enthusiast
 
Join Date: Mar 2000
Location: South Central Pennsylvania, USA
Posts: 2,552
Default

Cheap red stuff? Considering that off-road diesel is typically dyed red, that could get you in trouble if anyone is checking for such things.
__________________
'94 GMC 6.5TD K1500 4L80E 2-Door Yukon SLE 216K
'93 Chevrolet 6.5TD K2500HD NV4500 Std. Cab Longbed 184K
'85 Toyota 22R RN60 4x4 Std. Cab Shortbed 178K (Currently retired for rebuild)
Diesel Page Member #2423
Reply With Quote
  #16  
Old 11-12-2018, 02:45 PM
Kennedy Kennedy is offline
Long Distance Crew Chief for BMDMAX
 
Join Date: Mar 2000
Location: Loyal WI US
Posts: 10,636
Default

__________________
Kennedy Diesel-owner
More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT (Sold)
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
2016 GMC K3500SRW D/A CC short LTZ

Custom tuning in house using EFI Live tuning software!
Reply With Quote
  #17  
Old 11-13-2018, 05:47 AM
EdHale's Avatar
EdHale EdHale is offline
Enthusiast
 
Join Date: Feb 2000
Location: Jennings Ferry Campground, Camp Host
Posts: 498
Default

Quote:
Originally Posted by Kennedy View Post
I've been using Total Power ever since my truck was zero miles. It now has 191,000, runs great, 19-20 mpg when not towing and I've lost one injector in this entire time. So I'm a believer in the product, but what is the difference in the "Deluxe" version? My remaining stock isn't "Deluxe" as far as I remember. I buy it a case at a time and lasts me a long while. It was purchased from you also.

I guess it might be Deluxe and I have been using it for so long I don't remember.
__________________
Ed
KM4STL

'06 Sierra LBZ 4x4 Crew SB, Titan 52 gallon fuel tank, TTT/Schefenacker Mirrors
'98 Suburban, 245,000 - sold 7-4-06
Reply With Quote
  #18  
Old 11-13-2018, 10:47 AM
Kennedy Kennedy is offline
Long Distance Crew Chief for BMDMAX
 
Join Date: Mar 2000
Location: Loyal WI US
Posts: 10,636
Default

I don't know that there is any not listed as deluxe, but if so it's just marketing.
__________________
Kennedy Diesel-owner
More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT (Sold)
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
2016 GMC K3500SRW D/A CC short LTZ

Custom tuning in house using EFI Live tuning software!
Reply With Quote
  #19  
Old 11-16-2018, 02:58 AM
EdHale's Avatar
EdHale EdHale is offline
Enthusiast
 
Join Date: Feb 2000
Location: Jennings Ferry Campground, Camp Host
Posts: 498
Default

I have been using it for so long John I just don't look at the label anymore I guess. A case lasts me a long time now that I'm retired. When a bottle is empty I just grab another one off the shelf and keep going.

Thank you for keeping me supplied for all these years as well as with filters, etc.
__________________
Ed
KM4STL

'06 Sierra LBZ 4x4 Crew SB, Titan 52 gallon fuel tank, TTT/Schefenacker Mirrors
'98 Suburban, 245,000 - sold 7-4-06
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -7. The time now is 03:36 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright 1996-2018 by TheDieselPage.com - All Rights Reserved