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HiTEC® 46600 Multifunctional Diesel Performance Additive

Qualítty Seal: "Continuous monitoring"

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The quality mark

The DLG QUALITY SEAL for operating equipment and consum­ables encompasses products, which are subjected to extensive testing of their value-determining and advertised characteristics.

The tested criteria and the requirements to be fulfilled are specified by independent commissions and are designed – over and above legal requirements – to prove the product’s fitness for purpose, its advertised characteristics and practical requirements.

Testing contents and requirements are developed further by the responsible specialist departments of the DLG e.V. in line with the applicable legislation, as well as with technical and scientific progress. 

Successful testing is concluded with the assignment of the DLG QUALITY SEAL. The approved products  are then published.

In the course of the development of diesel engines, fuel injection systems have become more and  more complex, the injection pressures higher and the injection nozzle holes in the injectors are smaller,  more precise and more sensitive to dirt and deposits. 

These deposits affect the fuel spray pattern and subsequent combustion becomes less effective.  This reduces engine performance and can also lead to a deterioration in exhaust gas behavior and, in the worst case, to engine damage.

A well-controlled industry ‘Test Fuel’ consistent with fuel used in the industry standard CEC F-098 injector coking test was used to provide an efficient and reproducible method of creating injector deposits. Injector coking deposits in market fuel arise from a range of contaminants and oxidation products that  occur in fuel manufacturing, shipping, and storage. Dissolved zinc from sources such as galvanized fuel tanks or the release of tiny particles from brass connections combined with oxidation products from bio-diesel  can accelerate deposit formation in the nozzle holes in a very short time.

With the HiTEC® 46600 diesel fuel additive deposits on the injector nozzle holes are broken down and new deposits are prevented, reversing the effects on combustion and restoring vehicle performance. Other criteria were not tested.

Assessment in brief

In the series of tests carried out, both the targeted coking of the injectors by the test fuel and the cleaning effect of HiTEC® 46600 diesel fuel additive could be demonstrated. The performance of the machine measured at the beginning of the series of measurements was reached again after cleaning with HiTEC® 46600.

Table 1: Assessment in brief

DLG QUALITY PROFILE Cleaning effect confirmed 
Fuel Efficiencyup to 3.6 % better / 2.1 % ave(PTO testing)
Power Recoveryup to 15.5 % / 12 % ave(PTO testing)
Productivityup to 20.4 %(PowerMix testing)
AdBlue®/ DEF consumptionup to 24.5 % less(Transport testing)
CO2 reduction-2.1 % average(PTO)
 -12.1 % per hectare(Powermix full load cycle)

The product

Description and technical data

HiTEC® 46600 diesel performance additive is for­mulated with Afton’s Greenclean™ detergent technology, developed for performance in industry tests CEC XUD-9, DW-10, IDID and real-world vehicle fuel economy and performance, ensuring injectors are kept clean and free from deposits.

HiTEC® 46600 was dosed into the Test fuel at a concentration of 229 ppm v/v.

The base test fuel was a diesel supplied by Haltermann Carless GmbH. It contained 5 % bio-diesel and was blended specifically so the test fuel was able to meet the following market diesel specifications:

  • EN590
  • ASTM D975
  • CEC RF-79-07
  • CEC RF-05-08

The Test Vehicle

  • John Deere 6R 215 Auto Powr TM
  • 6.8 l engine with 6 cylinders
  • 237 hp (174 kW) max power (ECE-R120)  and 22 hp (16 kW) IPM
  • Transmission: AutoPowr
  • Emission Stage V

The John Deere 6R 215 tractor is often used in contract work. Typical areas of application for this machine include transport and light agriculture through heavy cultivation. Good and comfortable handling is desired throughout.

The Method

All the measurements were carried out using DLG’s dedicated off-road / agricultural chassis dyno (Figure 2 and 3). Our chassis dyno ranks among the world’s highest-capacity test stands for measuring vehicle performance, emissions and fuel consumption. Here, tests are conducted on tractors, machinery and other commercial vehicles.

Overview of Test Method – Definition

  • Dirty-Up’ was done with engine at full load and engine speed of 1900 rpm running on test fuel and zinc    without diesel fuel additive.
  • ‘Clean-Up’ was done with engine at full load and engine speed of 1900 rpm running on test fuel and zinc with 229 ppm v/v of HiTEC® 46600 diesel fuel additive

Tractor Performance Measurement

The effect of deposit forming test fuel was examined with 3 different test methods in order  to show a relation to use beyond the test bench results.

1. Power and fuel consumption measurement at full engine load using the Power Take Off (PTO) shaft
a)    PTO attachments give tractors more  versatility and in some cases the PTO is used alone – for example
–    Post hole diggers allow owners to dig holes for fence posts, posts for a deck, a pole barn or even plant trees.
–    Water pumps are used for dredging ponds and irrigating crops on a farm.
–    Wood chipping
b.    When measuring the power at the PTO shaft, the entire speed range from rated speed (2100 rpm) down to low idle (900 rpm) was covered. 
 

2. DLG PowerMix 
The test cycles performed on the roller dynamometer are based on actual load cycles measured in the field, which over the years have been developed into a practical test recognized by the tractor industry.

For the measurements of the field work based on the DLG PowerMix, the focus was on typical work with high power requirements on the PTO shaft, rotary harrow and mower. Pure traction cycles without PTO were not run-in order to minimize the influence of the tires under high tensile loads. 

Load typeName of cycle Driving speed
[km/h]
PTO speed
[min-1]
Drawbar work
+
pto work
power harrow100 % Z3K6900
power harrow70 % Z4K6900
power harrow

40 % Z5K

6900
mowing100 % Z3M16900
mowing70 % Z4M16900
mowing40 % Z5M16900

3. DLG Transport Tests
a)    Simulating the tractor driving on the road whilst towing a trailer
b)    Trips with high trailer loads were used.

Detailed account of the test results

Table 3: Summary PTO Test – %-Change after Clean-Up with HiTEC® 46600 diesel fuel additive at 229 ppm v/v

MeasurementPTO PowerPTO TorqueBrake Specific Fuel ConsumptionAdBlue® Specific Fuel Consumption
UnitskWNmg/kWhg/kWh
Average from 900 rpm 
to 2100 rpm
+12.4 %+12.4 %-2.1 %-10.9 %
Maximum+15.5 % at 1000 rpm+15.5 % at 1000 rpm-3.6 % at 1000 rpm-26.1 % at 1800 rpm

The results of the performance measurement can be seen in figures 8 and 9.
 

Table 4: Summary of Tractor Productivity Improvement

MeasurementPowerArea performanceConsumption per hectareConsumption costs
per hectare
   DieselAdBlue ®/ DEF 
 [kW][ha/h][l/ha][l/ha][€/ha]
Maximum (cycle power harrow)+6,9 %+20,4 %-11,7 %-15,1 %-11,8 %
Maximum (cycle mowing)+6,6 %+10,3 %-4,2 %-9,8 %-4,3 %

The cycles carried out with rotary harrow and mower confirm the results of the performance measurement on the PTO shaft. The increases in performance after Clean-Up with HiTEC® 46600 diesel fuel additive allow the tractor to increase its productivity compared to the vehicle with injectors in the ‘Dirty’ state. 
 

Transport Test

During the transport test, the main focus was on transport work with a high load, where the maximum available per­formance was required. The  measuring results are con­tinuously recorded, however only the results of six partial drives are used for the evaluation. 
These are highlighted in green in figure 15. These partial drives have different characteristic properties, and therefore requirements for the engine-gearbox coordination. 
 

Summary

Table 4: Final Summary – Table of significant claims 

 Afton H46600
Fuel Efficiencyup to 3.6 % better / 2.1 % ave (PTO testing)
Power Recoveryup to 15.5 % / 12 % ave (PTO testing)
Productivityup to 20.4 % (PowerMix testing)
AdBlue®/ DEF consumptionup to 24.5 % less (Transport testing)
CO2 reduction-2.1 % average (PTO)
 -12.1 % per hectare (Powermix full load cycle)

The test has shown that the additive HiTEC® 46600 from Afton Chemical Limited can c    ompletely remove injector deposits created with a fuel meeting CEC RF79-07 reference fuel specification 

The performance of the machine was fully restored after 14 ope­rating hours with HiTEC® 46600 diesel fuel additive showing significant

  • Increase in engine power and torque at full load measured through the tractors Power-Take-Off (PTO) device
  • Reduction in fuel consumption at full load measured through the tractors Power-Take-Off (PTO) device
  • Reduction in AdBlue®/ DEF consumption at full load measured through the tractors Power-Take-Off (PTO) device
  • Increase in productivity para­meters during the PowerMix cycle for harrowing and mowing
  • Increase in productivity para­meters during the Transpor­tation cycles
  • Reduction in CO2 at full load, measured through the tractor Power-Take-Off (PTO) device and during the PowerMix cycle for harrowing and mowing

Manufacturer and applicant

Manufacturer and applicant

Manufacturer
Afton Chemical Limited 
London Road, RG12 2UW Bracknell
England
 

Contact:
Telephone +44 1344 356609
jon.pilbeam@aftonchemical.com 
www.aftonchemical.com 

 

Test performed by

Testing agency
DLG TestService GmbH, Gross-Umstadt location, Germany
The tests are conducted on behalf of DLG e.V.

Head of Department
Stefano Mastrogiovanni

DLG test framework
DLG APPROVED “DLG-PowerMix 2.0”

Department
Tractors, machines & utility vehicles

Test engineer(s)
Hans Joachim Tauber *

*Author

Contact

DLG TestService GmbH - Groß-Umstadt location • Max-Eyth-Weg 1 64823 Groß-Umstadt Germany • Tel.: +49(0)69 24 788-611 • tech@DLG.org