• 92858038K01 Mercury MerCruiser Oil 9.46L Optimax | Genuine Quicksilver OEM Part
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92858038K01 Mercury MerCruiser Oil 9.46L Optimax | Genuine Quicksilver OEM Part

92858038K01 Mercury MerCruiser Oil 9.46L Optimax | Genuine Quicksilver OEM Part

$208.15 AUD
$208.15 AUD
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🔧 Product Description

Genuine Mercury OptiMax / DFI 2-Stroke Outboard Oil 9.46L - Part Number: 92-858038K01

Genuine Mercury OptiMax / DFI 2-cycle outboard oil in a 9.46 litre container. This synthetic-blend oil is designed for Mercury and Mariner direct fuel injected and OptiMax two-stroke outboards, offering high-load lubrication, carbon control and wear protection for DFI engine operation.

⚙️ Key Features

  • Genuine Mercury / Quicksilver OptiMax DFI oil
  • Correct Mercury part number 92-858038K01
  • 9.46 litre / 2.5 US gallon container
  • Synthetic-blend 2-cycle outboard oil
  • Formulated for OptiMax and DFI direct-injection engines
  • Larger container size for regular service or multi-engine use

🚤 Compatibility

Commonly used on

  • Mercury OptiMax two-stroke outboards
  • Mercury DFI two-stroke outboards
  • Mariner OptiMax / DFI two-stroke outboards
  • Direct-injected two-cycle outboards requiring OptiMax / DFI oil

Typically suits

  • Engine models:
  • Mercury 75 DFI / OptiMax applications where OptiMax / DFI oil is specified
  • Mercury 90 DFI / OptiMax applications where specified
  • Mercury 115 DFI / OptiMax applications where specified
  • Mercury 125 DFI / OptiMax applications where specified
  • Mercury 135 DFI / OptiMax applications where specified
  • Mercury 150 DFI / OptiMax applications where specified
  • Mercury 175 DFI / OptiMax applications where specified
  • Mercury 200 DFI / OptiMax applications where specified
  • Mercury 225 DFI / OptiMax applications where specified
  • Mercury 250 DFI / OptiMax applications where specified
  • Mercury 300 DFI / OptiMax applications where specified
  • Mercury 200XS / 225XS / 250XS / 300XS direct-injection performance applications where OptiMax / DFI oil is specified
  • Mariner DFI / OptiMax two-stroke outboards where OptiMax / DFI oil is specified
  • HP Range: commonly 75HP - 300HP DFI / OptiMax where specified
  • Engine Type: Mercury / Mariner DFI and OptiMax two-stroke outboard
  • System Type: Two-stroke oil injection / DFI lubrication
  • Container Size: 9.46L

🔌 Function

The oil lubricates internal two-stroke engine components and supports clean direct-injection combustion. It helps reduce carbon deposits, protect against piston scuffing and maintain performance in high-output DFI applications.

Common service use

  • Routine oil top-up for OptiMax / DFI engines
  • Oil tank refill after service
  • Multi-engine maintenance
  • Stocking larger container size for workshop or frequent use
  • Replacement when incorrect oil has been used

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 92-858038K01 current 9.46L OptiMax / DFI oil reference
  • 92-858038Q01 earlier / related 9.46L packaged reference where applicable

OEM / Related Numbers

  • 92-858038K01
  • 858038K01
  • 92858038K01
  • 92-858038Q01
  • OptiMax / DFI 2-cycle outboard oil
  • Mercury DFI oil 9.46L
  • Mercury OptiMax oil 2.5 gallon
  • 92-858037K01 related 3.78L container

Aftermarket / Verified Equivalents

  • Sierra TC-W3 direct-injection synthetic-blend equivalents are available where an approved direct-injection 2-stroke oil is acceptable
  • Use Mercury OptiMax / DFI oil where Mercury specifies it for warranty and service protection

📦 Condition

  • Genuine Mercury / Quicksilver oil
  • Brand new
  • Supplied in sealed 9.46L container

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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