PIPER COMANCHE SERVICE MANUAL 2·73. Lubric:u;iOD. 2-74. Oil SY"_ (Enpne). 2-75. 5crYiciDI Oil System. The enpne oil levd should be checked befon: ach fliIht &ad chaapd after each hours of encme operation. DuriDJ oil c:banF, the oil SCftCft(s) should be mnoved aDd clc:aDcd aDd. when inst&lled. the oil f11m c:araidIe replaced. ltlterVa1s between oil cb ..... CID be iDcreued as much as 100% on enpses equipped with fun flow (canridfe type) oil ЈBten provided the element is ~placed each 50 hours of operation. Removal and clanin, of sere .. may be fouad in PUllftpbs 2·78 and 2·79.
The enpne manufacturer does not recommend oils by brand IWIICL Use a quality btlDd Aviation Glade Oil of the proper season viscosity. For iIlfonnation on the use of dempnt oil, refer co Pulpaph 2-81 and/or Lycomillg Service InstrUction Lm:er 101.... CAI1I'ION Do not incroduce any trade additive to the basic lubricant unless recommended by the enline manufactUrer. 2·7.6. DrainiDJ Oil Sump. To drain oil Nmp, prvvide a suitable container with a minimum capacity of 8 q\LlJ'tS. a. Remove the oil drain a.ceess plate from bottom of the ftIIine cowl. b. Remove oil dtain Plul from bottom of the eopne sump.
It is recommended the eriline be wumcd to operating temperature to inlUre complete dn.ininl of the oil oil. 2-71. FUM,OU Sump. The oU sump should normally be filled with oil to the 8 U.S. quart mark on the engine dipstick. The specified grade of oil may be found in Table lI·yt, the Lubrication Qart, or on each engine oil filler access door. To savice the eftline with oil. open me quick release leCDS door on the left side of each engine cowling and remove the oil filler cap with dipstick. TABLE 11.v1. RICOMMENDED LUlAlCAnNG OILS HANDLING AND SERVICING REVISED: 413na 1 C19 Aviation Graci. Oil A".,.,. AMbi."t Air T....,.,.tvr.
SAE SO Above 60· F (16- C) SAE 40 30- F to 90e F (~1- C to 32- C) S.o\E 30 0- F to 70· F (~17- C to 21- C) SAE 20 Below 10· F (12- C)