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oil.md

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Oil

Fluid

  • 5W-30

    • API SN or greater
    • API Certified for gasoline engines
  • 3.15L without filter change

  • 3.35L with filter change

OEM fluid is: Daihatsu AMMIX/Amic EXTRA 5W-30
This is a full-synthetic oil.

Filter

*** AFTERMARKET FILTERS UNVERIFIED USE AT OWN RISK ***

Part Known Available At Price
OEM 15601-BW010 JustJap 20
K&N HP-1003 GA¹ 25
K&N SO-1003 GA¹ 15
Ryco Z386 GA¹ 20
Ryco Z386ST GA¹ 25
SCA386 GA¹ 17
JAPAN MODELS
Denso SF103 ¥1,736
Denso MF103 ¥2,591
OILF10
モノタロウ Monotaro SO-50 ¥429+tax
  • ¹ GA means it's avilable generally. SuperCheapAuto, Repco, Autobarn, etc.
Spec Value
Diameter 65mm
Seal Diameter 63mm
Thread 3/4"x16

Tightening: 3/4 turn from gasket touching. UNVERIFIED Removal tool size: 64mm x 14 splines UNVERIFIED

Notes

Oil filter hasn't changed since at least S100 (1994). Oil filter is common to a lot of Toyota's.

Bolts

  • Sump Bolt
    • M12x1.25
    • 29.5±5.9N・m (301±60kgf・cm) UNVERIFIED
    • Anecdotal, 25Nm
  • Pan bolts
    • 8Nm UNVERIFIED

Sump bolt torque

Sump bolt on KF engine seems to be infamous for stripping out.

Some tips found online

  • Clean drain bolt threads with parts cleaner.
  • Clean threaded part of oil pan with parts cleaner.
    • But don't get it in the engine.
  • Start the bolt by hand.

Early KF engines apparently used a short bolt that didn't go all the way through the pan. This was apparently reworked at some point, and the OEM plug is now longer, so if it's stubby, consider replacing it. Supposedly the thread length on the stubby is 9mm, and has been increased to 16mm.

Manual oil extractors are said to be effective on the KF engine.

Fumoto

I installed a Fumoto F103SX at my first oil change. The specs on the Fumoto F103SX call for 20Nm.

F103SX on Hijet Truck