Heavy Haul - Fuel Economy and Engine Life

[Rawze]

(05-16-2020 )KWT880 Wrote:  ...
1400 RPM - 440 HP
1500 RPM - 476 HP
1600 RPM - 455 HP
1700 RPM - 443 HP
1800 RPM - 401 HP
...

Looks like you have that bulls$it 78% restricted torque fuel mapping in that thing.

- If you worried about warranty above longevity and productivity in your business, then your in the wrong line of business. Run the damn thing 30k miles to ensure its ok, then have it custom programmed (legally, I am not referring to delete programming),.. to be more lenient on the emissions bullsH#$it shutdowns, but still pass, have the power/torque set Like I mentioned above ... REMOVE THAT BULLS$IT 78% restrictive mapping they have set in that engine (also is seen on your dyno numbers there). - That is what I would do to it if I owned it ... as well as get rid of those rear ends that are too tall for what your doing.

====================

* Overhead valve adjustments should be done every 250k miles.

* Engine needs an bypass oil system on it (a cheaper amsoil bypass filter is sufficient ) to help keep the soot out of the oil from day one.

* Engine oil needs replacing according to miles instead of some bull#shi#t cummins statements about every X miles/hours ... This is because of the soot buildup (due to egr) in the engine. Here is the recommended oil change intervals to make it last as long as possible without wasting moneys...

Rawze Wrote:If your average fuel mileage, roughly every IFTA quarter is ...

less than 5 MG -- Change your oil every 8,000 miles ( or 180 hours) or so.

5 - 6 MPG -- Change your oil every 10,000 - 12,000 miles ( or 220 - 260 hours) or so.

6 - 7 MPG -- Change your oil every 12,000 - 15,000 miles ( or 260 - 328 hours) or so.

7 - 8 MPG -- Change your oil every 15,000 - 18,000 miles ( or 328 - 392 hours) or so.

8 - 9 MPG -- Change your oil every 18,000 - 22,000 miles ( or 392 - 478 hours) or so.

above 9 MPG -- Change your oil every 22,000 - 28,000 miles ( or 478 - 600 hours) or so.

These recommendations are based on more than just engine wear alone. They are based on getting the most engine life vs the cost of oil changes themselves, and the fact that soot and other deposits are going to keep building up in your engine more rapidly than you can flush them out. A bypass oil filter system can extend this, but not by the claims they are making. You would be good to get an extra 8,000 - 10,000 miles ( 150 hours ) on your oil before having to change it anyways. That is my experience on it, and is what I tell others that ask about these types of systems, etc.

* A gallon of GEAR OIL used in the engine at every oil change is very helpful towards longevity of the lubricated components. it will not only raise viscosity to help it, but also add back some of those well-established additives that have been stripped out of from these modern oils by the Epa.

* Regular tune-up work to prevent the engine from making excessive soot that includes replacing sensors, cleaning things out, etc. <- A person has to stay on top of these engines.

* EVERY 400k miles ( or 8,000 hours) -- Replacing the guts of those high pressure fuel pumps. This is an absolute MUST, or you risk loosing the whole engine without warning.

====================


Wise investments and wise decisions = way more long term profits and reliability than any warranty is ever going to cover. -- besides that,.. I would not let a certified OEM shop anywhere near my engine if it were to fail.. nothing but half-arsed repairs and waiting forever to get it back while all your good customers find someone else to haul their freight.

just my own thoughts on it any ways.