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kozakvod · 05-04-2023, **(Subject: Demandated Update )**

(07-29-2021 )earnies2 Wrote:
(07-12-2021 )kozakvod Wrote: Thought I'd give a short update on my deleted @m*m^2.

2014 Pete 388; ISX15 2350
OD: 673,000
OD @ Demandate: 581,000

I included a picture of my oil at last change yesterday, it had 12,209 miles on it. Yes I know a picture doesn't tell much other than what it shows, but considering how BLACK that oil used to be prior too the demandate vs. how it is today, I think it shows a lot.

Would I do it again? Oh yes I would. Admittedly it wasn't easy on my truck due to being a car hauler I sit low and getting under my truck is not an easy process to begin with. Manhandling those heavy cans by myself was rough, getting them gutted and reinstalled wasn't easy, but it was worth it. I have had virtually no issues with this truck since and pray to God it stays that way.

I had to learn to drive very differently after the delete than before. I had to learn how to keep one eye on my boost gauge and one on the road. I had to get used to running much higher RPM's than I ever ran previously, but yes, I'd do it again. I was dropping over $20k/year on that emissions system trying to keep it running and that alone has been worth it, but I also know my engine is healthier too. And thank you to everyone here that assisted me in that process.
How do you drive differently now than before, and what is your fuel millage compared to before

As I was going back through some older postings I saw this question and even though we're going on nearly 2 years later I thought it'd be worth the update:

First, I did get my low end done back the beginning of January at just shy of 800k, oil pressure went up from generally 35-37psi to 39-41psi or so. The engine was demandated in April of 2020 at 581k; Fuel pump tappets, etc. were replaced at the 581k mark as well.

You asked "how do I drive differently?" The deletion pretty much required it. No longer could I run in 13th gear loaded at 1500. Now it was all about making sure I keep my boost below 30, and that is the high number for me. I know Rawze as said it can be up to 32, but I get real nervous even approaching 30 now. I NEVER run in 13th gear anymore. I am constantly between 11th and 12th now. I keep my RPM's above 1700 as much as possible and generally closer to 1800 and 1900. In doing so it keeps my boost down and my MPG's more tolerable. Oh, and my speed now is really never much above 61 or 62 loaded or empty.

About the MPG, it's important to note that I am NOT in an aerodynamic truck. I am a car hauler in a 2014 388 Pete with a 3 car rack and 6 car trailer. Generally I have an SUV backed on overhead so I'm ALWAYS pushing air with the flat nose of the Pete and with the back of that SUV. Before the delete I was always in and around 4.9 mpg. My dedicated route is N. Texas to Colorado Springs, 600' elevation to 6000' over 700 miles generally loaded to 80k+ and the winds in west Texas are ALWAYS on gale force. After the delete, 5.1 is about it. I didn't do the delete for the hopes of better MPG. Mine sucks regardless. I did get a bit of a bump, but I'll tell you right now, the thing I do that helps the most is CHANGING THE AIR FILTERS. I can notice an immediate change in engine happiness when I put new filters in, I'm a big fan.

So the biggest change. Driving habits! That's it. I do NOT strain my engine. I don't ask it to do things that are going to be harmful to it's life. I change my oil CONSISTENTLY every 12k to 14k. My oil is just as clean today as it was the day after the delete, 250k miles ago. And maybe I baby it more than I need I don't know, but I know this...I just got this thing paid for last November so I want to enjoy the fruits of that for as long as I can and I hope it's for a very long time to come.