Diesel Tuner's Blog

What To-Do If Your Diesel Fuel Gells Up

[fa icon="calendar'] Jan 17, 2024 11:48:10 AM / by Ben Lawson posted in Duramax, LML, 2.8L, L5P

[fa icon="comment"] 0 Comments

As the winter months rolls around us diesel owners get an unexpected bit of stress added to our plate. Diesel fuel gelling is a very common issue most diesel owners who live in areas where the temperature drops below 32 degrees will face at least once in their lives. Not only is this issue frustrating and stressful when it occurs, the mere trauma from past experiences can lead to constant stress during these cold times. No one wants to get out of work in the pitch black freezing cold only to find that their truck won't start at all. But what should you do in the event that your truck won't start or stay running? Luckily we have a step by step guide on how to properly fix this issue once it has occurred. 

 

 

As a preface, this issue is caused when the paraffin wax used in diesel fuels (for lubricity and proper viscosity) start to solidify.  While gelling can take on varying levels of severity from cloudy fuel all the way to a squishy solid mass. Diesel fuel gelling is never a thing you want to expeirince. At its most mild levels it can cause poorer fuel economy, less power, and be pretty hard on your fuel system. At its worst I can clog fuel lines, filters, pumps and even injectors while potentially causing irreversible damage to your fuel system.  If you live in a cold climate take precautions by adding anti-gelling agent into your fuel before severely cold temperatures start setting in to avoid all of these issues. 

Read More [fa icon="long-arrow-right"]

Stock Duramax Turbo Specs and Information

[fa icon="calendar'] Jul 31, 2023 8:00:00 AM / by Ben Lawson posted in LLY, Duramax, LML, LBZ, Turbo, Stock Turbo, LB7, LMM, LB7 Turbo, LBZ Turbo, LMM Turbo, LML Turbo, Duramax Turbo, LLY Turbo, L5P, L5P Turbo

[fa icon="comment"] 0 Comments

Over the years, GM has changed a lot regarding the turbos they use on Duramax engines. Not only have they changed manufacturers a handful of times but each RPO has its own unique measurements for key components. This can make it a headache when trying to track down exactly what the measurements of your stock turbo are. Luckily we've compiled this list of stock Duramax turbo specifications along with other helpful information so you can get a good idea of what you're already working with before you dive into the sea of turbo upgrades these trucks have to choose from. However, while some turbos may have the same peak power output, the size and shape of specific components can affect things such as exhaust gas temperature, drive pressure, and turbo efficiency range.  

Read More [fa icon="long-arrow-right"]

What's an RPO? Crucial Duramax Information!

[fa icon="calendar'] Jul 18, 2022 6:00:00 AM / by Ben Lawson posted in LLY, Duramax, Duramax Power, LML, LBZ, LB7, LMM, L5P, L5D, LWN, RPO

[fa icon="comment"] 0 Comments

 

 

What's an RPO? Crucial Duramax Information!

 

This article will help you understand what an RPO is, how to find yours and when it will be needed.  An RPO or Regular Production Option is a GM-specific code, made up of 3 characters, that helps the manufacturer specify what configuration of options has been or needs to be applied to a vehicle. This can include anything from paint color to powertrain options. For Chevy/GMC Duramax trucks each type of engine can be signified by a different RPO code.

 

Read More [fa icon="long-arrow-right"]

2011 - 2016 LML Duramax 520 RWHP Tune Only!

[fa icon="calendar'] Feb 4, 2019 8:59:00 AM / by Paul Wilson posted in LML, LML Tuning, LML Power, LML Performance, 600HP LML

[fa icon="comment"] 0 Comments


520 RWHP TUNE ONLY LML DURAMAX:

The 2011 - 2016 LML Duramax came rated at 395 horsepower and 765 ft/lbs of torque.  That seemed like an amazing amount of power when this model was first released but these days it is dwarfed by the available power of brand new trucks.

Furthermore, that whopping 395 HP is a peak power rating, meaning that you probably won't produce that much power during normal operations.  In fact, many owners complain that the power delivery of the stock tune is too soft. This is why custom tuning is so important for the LML Duramax.  

Here are some of the things tuning your LML can help with:

  • Increased Peak Horse Power
  • Improved Shift Quality
  • LML Dead Pedal Resolution

LML EZ Lynk Tuning

Read More [fa icon="long-arrow-right"]

Everything You Need For a 620HP LML With the DPF ON!

[fa icon="calendar'] Nov 1, 2018 2:16:00 PM / by Paul Wilson posted in LML, How to program my LML, More Power for my LML?, what are some upgrades I can go to my LML?, LML Tuning, LML Power, LML Performance, LML TCM Tuning, LML Turbo, 600HP LML, Stealth 64 LML

[fa icon="comment"] 0 Comments


 

Ever wonder what you need to push your stock truck to its limit?  We know the answer, and we created this article for you.  For 600-640 RWHP you will need to keep in mind all the supporting modifications you need to maintain reliability.   

Custom tuning is going to ask your truck to perform at a higher level.  The same goes for upgrading your turbo, transmission, fuel system or any other performance orientate component.  The best way to maintain a moderate level of reliability while upgrading is to address these issues once and do it right!

Here is the list of what you need to make a reliable 600+ RWHP LML with a DPF still on it:

  • EZ Lynk AutoAgent 2.0 w/ Support Pack & LSP5 Switch
  • LML Stealth 64 Turbo
  • 10mm Cp4 Exergy Stroker Pump
  • DT550 Built Transmission
  • S&B Intake
  • Tie Rod Sleeves
  • Traction Bars
  • Fass 165 Lift Pump
  • Beans Fuel Tank Sump Kit
  • Edge Insight CTS2 Monitor
  • EGT Probe

Read More [fa icon="long-arrow-right"]

How To Go Further Between Regen!

[fa icon="calendar'] Apr 16, 2018 3:32:48 PM / by Justin Tyson posted in LML, More Power for my LML?, what are some upgrades I can go to my LML?, LML Tuning, LML Power, LML Performance, LML Turbo

[fa icon="comment"] 0 Comments

You use your truck for daily commuting or hauling the family and trailer for a long weekend of camping,  you’re rolling up to your work or that campsite and you notice the LML go into regeneration (regen).  You can’t keep driving as you should because you got a job to do or things to unpack.  You can’t help but wonder what can be done to keep your LML from going into this cycle as often as it does, we’ll get into that in bit, first let’s look a little more at DPF regen. 

The DPF takes essentially 700 miles or 18 hours of drive time to put it to the maximum values of normal calculated mass soot levels, which if you were curious is 44 grams.   Active Regen describes the procedure your truck goes through to burn that accumulated soot.  To do this, fuel is dosed through a 9th injector directly into your exhaust.  Many drivers have noticed a drop in MPG and even potentially a lack of power during regen. 

Speak with a Diesel Performance Expert!

A popular theory is that if you go through regen less frequently, your MPGs will go up.  So, how can you go through less regens?

Read More [fa icon="long-arrow-right"]

STEALTH TURBO PRICE UPDATE

[fa icon="calendar'] Oct 23, 2017 2:44:13 PM / by Paul Wilson posted in LLY, LML, Cummins Turbo, LBZ, LML Power, Stock Turbo, Stealth 64, LB7, Stealth, LML Performance, LMM, LB7 Turbo, Bolt on turbo, LBZ Turbo, LMM Turbo, LML Turbo, Diesel Turbo Options Duramax, Diesel Turbo Options Cummins, Duramax Turbo, LLY Turbo, Turbo Upgrades, LB7 Turbo Upgrade, 640HP LB7, Stealth 64G2, Stealth VVT, Stealth 64 LML

[fa icon="comment"] 0 Comments


We have lowered our MAP pricing on the Stealth 64 Turbo:

Calibrated Power, home of DuramaxTuner.com, has ramped up in-house production of the Stealth Turbo line.  This added capacity and volume of turbo production has provided an opportunity to lower MAP pricing on all Duramax models and allowed the Cummins 5.9L Stealth 64 to be a low price and top quality leader in it's category. 

Our Stealth 64 Turbo's are:

  • Made in the USA!
  • Upgraded, Drop-In Replacement!
  • Quick Spooling with Big POWER!
Read More [fa icon="long-arrow-right"]

Does the'11-'16 Duramax DPF rob you of horsepower?

[fa icon="calendar'] Oct 11, 2017 9:30:00 AM / by Paul Wilson posted in EFILive, LML, Diesel Tuning, LML Tuning, LML Power

[fa icon="comment"] 0 Comments


No need to delete emissions to make power!  

Many people looking to make more power with a 2011 - 2016 LML Duramax think an aftermarket exhaust is required to make power.  This is simply not true!  Countless people reach over 500 RWHP with just the LML SPADE and a lift pump.  

Above you can see the dyno graph from our DPF ON sled pull truck.  Named #DTCleanSweep because this truck has "swept away" plenty of deleted trucks on the sled pull track.  It sounds quiet, it runs clean, and it kicks some ass!  This 2012 Duramax makes great power with the emissions equipment still working.  While this truck has a few more upgrades than your normal street truck, it does definitely proves you can make power with the stock exhaust. 

Keep in mind this truck came to us deleted, and was returned to stock.  We had a chance to test it with both setups.  Truth be told, the deleted version made less than 5% more power.  Not enough to notice from the driver seat and obviously not enough to cost us anything at the track. 

 

The most common myths about making power with an LML Duramax:

LEARN MORE ABOUT DIESEL EMISSIONS EQUIPMENT
Read More [fa icon="long-arrow-right"]

5 Things Your LML Needs to Make 600HP!

[fa icon="calendar'] Sep 6, 2017 11:00:00 AM / by Paul Wilson posted in LML, LML Tuning, LML Power, Stealth 64, #CleanSweep, LML Performance, DTCleanSweep, HP recepie, 600HP LML

[fa icon="comment"] 0 Comments


2011-2016 Durmax HP Recipe:

Your 2011 - 2016 GM Diesel is powered by the LML Duramax.  This engine is capable on monstrous amounts of power while retaining some reliability, if you know what you are doing. 

 

No, it's not just for drag racers and sled pullers.  This level of power isn't even just for kids.  600HP is fun for the whole family.  You can have a truck that is reliable and still capable of having a little fun when you want it to.  That is why we put this simple list of 5 things you need to make 600HP and keep your truck on the road. 

Here are some other articles about LML Performance:

Read More [fa icon="long-arrow-right"]

5 Things You Need To Know About LML TCM Tuning!

[fa icon="calendar'] Aug 10, 2017 1:00:00 PM / by Paul Wilson posted in LML, LML Tuning, LML Power, TCM

[fa icon="comment"] 0 Comments


 

2011-2016 Duramax/Allison Equipped Trucks:

 

If you have a 2011 - 2016 GM diesel pickup truck then you are familar with the Allison 1000 transmission.  With that, you are familar with the strengths and weaknesses of the calibration, or tune that controls it.  

While this model transmission has provided a great platform for smooth shifting and excellent towing, it's not without downfalls as well.  list a few problems that the features will address.

Read More About LML Performance:

Read More [fa icon="long-arrow-right"]

Subscribe to Email Updates

Lists by Topic

see all

Posts by Topic

see all

Recent Posts