What Fuel Should I Use, CHARLIE 

 DISTI LLATETo r GASOLINE?/; 



here's 



THE 

 ANSWER 



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READ WHAT ENGINEERS SAY 



There are only three types of SPARK IGNITION Tractor Engines available — select the right fuel for 

 each type. 



1 HIGH COMPRESSION ENGINES — designed to give maximum efficiency on 70 Octane Gasoline. 



2 LOW COMPRESSION ENGINES — specifically designed to operate most efficiently and econom- 

 ically on Distillate (Tractor Fuel). 



3 LOW COMPRESSION ENGINES with CONVERTIBLE (hot and cold) MANIFOLDS — in which 

 you can use either Gasoline or Distillate. 



nCURE Ml COSTS 



For engines of the third type (low com- 

 pression with convertible manifold) no single 

 fuel recommendation can be made that will 

 satisfy all types of farm work, weather or 

 points of view. If your selection of fuel is 

 to be wise, three important points should be 

 carefully considered. 



FIRST: The cost of Fuel and Lubricating Oil 

 accounts for only 43% of the total cost of 

 maintaining a tractor. 



SECOND: Repair costs — resulting from 

 dilution and engine wear should be com- 

 pared. 



THIRD: Ease of starting — flexibility — 

 convenience and performance are qualities 

 which cannot be measured by the mere 

 price per gallon of fuel. 



WHEN TO USE DISTtLUTE T 

 TRACTOR FUEL 



— if your tractor is properly equipped with 

 a hot manifold — 



— if the work load on your engine will 

 exceed 60 to 70 percent of its maximum 

 horsepower, then use DISTILLATE "T" (Trac- 

 tor Fuel) because — 



( 1 ) Its distillation range and specifice- 

 tions conform to the demands of the 

 tractor manufacturers. 



(2) It has an ANTI-KNOCK rating of 30 

 PLUS OCTANE. 



(3) It costs no more than ordinary dis- 

 tillates. 



(4) It is TAX FREE — with a flash point 

 above 115° F. 



MATCH THE FUEL WITH THE LOAD 



To help make this more clear to 

 you we quote Professor F. W. 

 DufFee, Department of Agricul- 

 tural Engineering, University of 

 Wisconsin, from his address be- 

 fore the Power Machinery Divi- 

 sion of the Farm Equipment In- 

 stitute, December 3, 1936. 

 FIRST, where uniformly steady 

 loads equalling or exceeding 60 

 to 70 percent of the maximum 

 horsepower of the engine prevail, 

 use light straw colored distillate 

 of good grade having a maximum 

 or end point of not over about 

 525 degrees F. These recom- 

 mendations would apply to mod- 

 ern tractors equipped with good 

 manifold for the burning of heavy 



fuel and where provision is made 

 for proper control of the engine 

 temperature so as to maintain the 

 temperature of the cooling liquid 

 above approximately 200 degrees 



"SECOND, where the load on 

 the engine is less than 60 or 70 

 percent of the maximum horse- 

 power or where the loads are 

 irregular or vary as for example 

 In the case of operating an en- 

 silage cutter then we would rec- 

 ommend gasoline. If the iob is 

 such that rather frequent starting 

 of the engine is necessary then it 

 very definitely should be oper- 

 ated on gasoline. 



"THIRD, if the tractor is not 

 used a large number of hours 

 per year and certainly if it is a 

 small tractor we recommend us- 

 ing gasoline exclusively as there 

 will be less bother in handling 

 the tractor on gasoline and the 

 saving in using distillate would 

 not be great. 



"Certainly if the engine is to be 

 operated on gasoline most of the 

 time then it would be advisable 

 to plan to operate on gasoline 

 ALL the time and use high com- 

 pression so as to secure the maxi- 

 mum efficiency from the fuel and 

 maximum performance of th« 

 engine." 



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If your tractor is prop«Hy 

 equipped to use a heavy fuel 

 — use DISTILLATE 'T' Tractor 

 Fuel vfhich is sold exdusively by 

 the 63 County Service Com- 

 panies. 



