Forms, fuel-efficiency testing ...TMC: 52-60 Formula, fuel savings ...TMC: 19 Fuel Consumption Test Procedure,
Type II (SAE J1321) ...B: 4 Fuel consumption at various weights
and speeds ...TMC: 19 For your convenience, this index includes entries
for both this guide and TMC’s publication The Fleet Manager’s Guide to Fuel Economy.
Entries referencing the TMC guide are indicated by “TMC:” preceding the page number. References to this guide use “B:” preceding the page number.
Real Answers,
Tires & Truck Fuel Economy
The Fleet Manager’s Guide
to Fuel Economy
A Aerodynamic devices
adverse effects, brakes, heat effects TMC: 22 retarder use...TMC: 22 cab structure, corrosion ...TMC: 22 metal fatigue ...TMC: 22 vibration ...TMC: 22 drivetrains, heat effects ...TMC: 22 lubrication choices ...TMC: 22 trailer gap, aerodynamics ...TMC: 23 debris, dirt, salt, chemicals ...TMC: 24 refrigeration units ...TMC: 23 Aerodynamics
air cleaners, external ...TMC: 15 air dam bumpers ...TMC: 15 air resistance ... B: 12, 13, 20, 27 deflectors, air, cab mounted ...TMC: 14 deflectors, bug, dead bug rule ...TMC: 15 exhaust stacks ...TMC: 15 extenders, cab ...TMC: 14 flat beds ...TMC: 15 full roof fairing ...TMC: 14 horsepower demand, speed effects .TMC: 25 looks and ...TMC: 14 mirrors ...TMC: 15 RP 1109 Type IV Fuel Economy
Test Procedure ...TMC: 14 side skirts ...TMC: 15 sleeper, raised-roof ...TMC: 14 snow accumulation ...TMC: 15 trailer dimensions ...TMC: 15 trailer height ...TMC: 14 turbulence and drag...TMC: 14 urban environments ...TMC: 15 Accessories ...B: 18 Ahluwalia, Singh ...B: 1
Fuel economy calculations
computer, on board ...B: 5, 9 errors in ...B: 6 fuel savings and MPG changes ... B: 6-7 example of...B: 7 Fuel economy factors
axle weight distribution & position B: 26, 27 changes in ...B: 9 current fuel economy ...B: 9 drive axle effects ...B: 29 driver education ...B: back cover inflation pressure effect ...B: 25 real world ...B: 5 speed ...B: 12-15 TMC’s statements, summarized ...B: 31 top ...B: 12, 30 Fuel economy improvements ...B: 13 benefactors of ...B: 7 costs vs. return on investment ...B: 9 mpg improvement vs.
fuel saving percentage ... B: 6-7 worth of ...B: 8, 9 Fuel economy testing ... B: 4; TMC: 39-60 long-term ...B: 32 mathematics of, errors in ...B: 6
real world results vs.
laboratory results ...B: 8, 32 recommendations for ...B: 32 Fuel economy tracking, long-term ...B: 32 Fuel efficiency factors ...B: 12 air resistance ... B: 12, 13, 20, 27 axle weight distribution & position B: 28-29 load ...B: 16-17 speed ...B: 12-15 tire rolling resistance ...B: 12-13
I Idle cost analysis
calculation example ...TMC: 31 engine wear costs ...TMC: 30 fuel consumption ...TMC: 30 idle fuel consumption chart ...TMC: 32 idling fuel tax adjustment ...TMC: 36 total idling cost per day ...TMC: 36 Inflation pressure effect ...B: 25 L Lightweight components ...TMC: 20-21 Load ... B: 16-17 fuel savings ...B: 16 wide base tires ...B: 17 Long-term fuel economy tracking ...B: 32 Low profile radials ...B: 2, 17 Lubricants, axle and transmission ...TMC: 17 Lug tires ...B: 23 M MPG Calculations, errors in ...TMC: 7
MPG improvement vs.
fuel saving percentage ... B: 6-7 O Oil coolers, transmission ...TMC: 17 Operating for fuel economy ...TMC: 25 P Parasitic devices ...TMC: 33
Preventive maintenance costs
idling PM costs per day ...TMC: 34 Products, guidelines for qualifying fuel economy claims ...TMC: 23 Publications ...TMC: 2 Recommended Practices,
Recommended Practices Manual ...TMC: 3 technical questions concerning ...TMC: 2 Pups ...B: 26, 27
36
index
R (R, continued)
RP 1103 TMC/SAE In-Service Fuel Consumption Test Procedure –
Type III/J1526 ...TMC: 37 RP 1109 Type IV Fuel Economy
Test Procedure
accuracy of procedures ... TMC: 37, 38, 39; control of variables ... TMC: 38, 39; copies of procedure ...TMC: 38; vehicle can continue to
perform revenue service ...TMC: 37 S SAE.
see Society of Automotive Engineers (SAE)
S.11 Vehicle Energy Conservation
Study Group ...B: 3 Single trailers ...B: 26, 27 Society of Automotive Engineers
(SAE) ...B: 4, 10 Spec’ing for fuel economy ...TMC: 8 Speed
aerodynamic drag ...TMC: 21 engine wear, increased ...B: 15 fuel consumption, influence on ... B: 12-15 productivity and ...B: 14 tire fuel efficiency, loss of ...B: 15 tire life, shorter ...B: 15 tire rolling resistance ...B: 12-13, 19 travel time and ...B: 14 T Tandem drive tractors ...B: 26, 27
Technology and Maintenance Council (TMC) ...B: 3, 4, 30 on computer calculations, on-board ...B: 9 The Fleet Manager’s Guide to
Fuel Economy ...B: 3
Fuel Consumption Test Procedure,
Type II (SAE J1321) ...B: 4 on fuel economy calculations, errors ....B: 6 fuel economy factors, summarized ...B: 31
Testing for fuel economy
TMC Recommended Maintenance Practices Manual ...TMC: 38 Texas Proving Ground,
Fort Stockton, Texas ...B: 4
Tire components ...B: 20 Tire fuel efficiency
axle position ... B: 26-27 inflation pressure effects ...B: 25 loss of ...B: 15 speed, effect of ...B: 15 tire rolling resistance ...B: 12-13 tread design effects ...B: 23 Tire life ...B: 15 Tire Life Cycle Cost (TLCC) ...B: 3, 10-11, 23 Tire rolling resistance ...B: 18 casing effects ...B: 23 change in, vs. change in fuel usage ...B: 19 importance of, relative ... B: 18-19 influence on fuel consumption ...B: 12-13 speed and ...B: 12-13, 19 tire components and ... B: 20-21 tread compound effects ...B: 21 vs. tread wear ...B: 23 Tires
lug, deep lug ...TMC: 16 original tread ...TMC: 16 retreads ...TMC: 16 rib ...TMC: 16 shallow rib ...TMC: 16 traction control ...TMC: 16 tread remaining ...TMC: 16 undertread rubber ...TMC: 16 TMC. see Technology and Maintenance
Council (TMC)
TMC publications, videos ...TMC: 2 TMC S.11 Vehicle Energy
Conservation Group ...TMC: 3 TMC Type IV Fuel Economy Test,
definitions ... TMC: 40, 41 description ...TMC: 39 discussion ...TMC: 46 aerodynamic devices ...TMC: 50 test course shape ...TMC: 50 weather records ...TMC: 50 dipstick construction ...TMC: 48 forms, Type IV data test ...TMC: 52-60
test run, before mid-point,
interval between vehicles ...TMC: 46 vehicle specification and configuration, break-in mileage ...TMC: 42 gross combination vehicle weight ..TMC: 42 tire design, air pressure,
remaining tread ...TMC: 42 weather measurements ...TMC: 43 Transmissions, computer simulations
in selection ...TMC: 16 direct vs. overdrive ...TMC: 16 Type IV Fuel Economy Test
overview ...TMC: 40 purpose ...TMC: 39 scope ...TMC: 39 validity, basic rules ...TMC: 39 Wind effects ...TMC: 21 Tochigi Proving Ground, Japan ...B: 4 Trailer tires ...B: 26, 27 Transportation Research Center,
Marysville, Ohio ...B: 4 Tread cap-base ...B: 21 compound effects ...B: 21 depth effects ...B: 22, 23 design effects ...B: 23 tire rolling resistance ...B: 23 Treadwear effects ...B: 22 fuel-efficient vs. conventional radials ...B: 23 inflation pressure and ...B: 25 vs. rolling resistance ...B: 23 V Videos, educational ...B: 3, back cover Fuel Test Data ...TMC: 56
Fuel Test Results Worksheet ...TMC: 59 Fuel Test Valid Ratio Worksheet TMC: 60 Post Test Driver Interview ... TMC: 57, 58 Power Unit Vehicle
Identification...TMC: 52 Temperature Correction for
Type IV Fuel Test Run...TMC: 54 Trailers/Bodies Vehicle
Identification...TMC: 53 fuel system, truck
crossover lines ...TMC: 43 fill tube marking or dipstick ...TMC: 43 fuel island paving irregularities ...TMC: 43 pump-down or draining ...TMC: 43 fuel tank configuration,
error effects ...TMC: 48 fueling ...TMC: 48 interval between vehicles,
adjustments ...TMC: 47-48 measurement, fuel consumed,
Type IV Fuel Test Data form, TMC: 46; Type IV Fuel Test Results
Worksheet ...TMC: 46
observers ...TMC: 42 preparation, test, drivers ...TMC: 42 preparation, vehicle ...TMC: 43 procedure, test, fueling before
test run ...TMC: 45 route selection ...TMC: 41 traffic control devices ...TMC: 47 speed selection ...TMC: 41 switching, mid-point ...TMC: 46 tank leveling ...TMC: 49 temperature correction table, fuel ..TMC: 51 temperature stabilization and correction fuel
According to TMC, the most skillful drivers can produce as much as
35 percent better miles per gallon than the least skilled. So, driver education can be one of the most important tools in large truck fuel economy.
A special Bridgestone video, What Drivers Can Do To Save Fuel, is available for driver education programs. Your drivers will learn:
• Why saving fuel benefi ts drivers too • How to save fuel even before the trip starts • Why idle control is so important
• How to use time management to save fuel • Why excessive speed doesn’t pay
For a copy of this or any of Bridgestone’s other technical videos, ask your Bridgestone representative, e-mail us at [email protected] or call
1-888-694-0469. You’ll also fi nd these videos online, in both streaming and downloadable versions, at BridgestoneTrucktires.com.