Storage Fogging Oil, 12 ounce | BRP-0777186

BRP Johnson Evinrude Storage Fogging Oil | 12 oz. Spray | Part #0777186 | Replaces OMC 174995, 771298, 775626, 775628, 777187

Skipping fogging oil at winterization is one of the most common — and most costly — mistakes outboard owners make. Without a protective coating on internal engine surfaces, moisture and residual combustion acids attack bare metal throughout the storage period, causing rust, corrosion, and cylinder wall pitting that shows up as hard starting, low compression, and accelerated wear the following season. BRP #0777186 is the original Johnson/Evinrude formula fogging oil — engineered specifically for OMC, Johnson, and Evinrude outboards to coat internal engine surfaces, protect external components, and give your engine the best possible chance of starting cleanly in the spring.

Replaces OMC/Johnson/Evinrude part numbers 174995, 771298, 775626, 775628, and 777187.

Part Details:

• Part Number: 0777186
• Manufacturer: BRP (Bombardier Recreational Products)
• Type: Storage Fogging Oil
• Size: 12 oz. aerosol spray can
• Formula: Original BRP Johnson/Evinrude
• Replaces OMC/Johnson/Evinrude: 174995, 771298, 775626, 775628, 777187
• Use: Internal engine fogging (via carburetor or intake) and external surface protection
• Condition: New

Additional Information

How to Use BRP Fogging Oil for Winter Storage:

Internal engine protection (fogging): With the engine running and warmed up, spray fogging oil directly into the carburetor throat or air intake in short bursts until the engine begins to smoke and stumble — this coats the cylinder walls, piston rings, and valve surfaces with a protective film before the engine is shut down for storage. This is the most critical application.

External surface protection: Spray on throttle and shift controls, cable ends, electrical connectors, linkages, and metal tools to displace moisture and prevent saltwater corrosion during storage. The protective film clings to metal surfaces and resists washoff.

Why the OEM Formula Matters:

• Engineered for OMC/Johnson/Evinrude engines — the original BRP formula is calibrated to coat and protect the specific alloys and tolerances used in Johnson and Evinrude outboard engines
• Protective chemical film — bonds to metal surfaces and neutralizes residual combustion acids that cause internal corrosion during storage
• Multi-surface protection — safe for use on engine internals, rubber components, electrical connectors, and external metal surfaces
• Convenient aerosol format — 12 oz. spray can delivers controlled application directly into the carburetor or onto external surfaces

Frequently Asked Questions

1. How do I confirm this is the right fogging oil for my Johnson or Evinrude outboard?
The BRP #0777186 is the original Johnson/Evinrude formula and replaces OMC part numbers 174995, 771298, 775626, 775628, and 777187. If any of those numbers appear on your existing fogging oil can or in your service manual, this is the correct replacement. It is suitable for use on Johnson and Evinrude outboards across a wide range of models and years.

2. When should I apply fogging oil?
Apply fogging oil as part of your end-of-season winterization before the engine goes into storage for 30 days or more. The longer the storage period, the more critical fogging becomes — engines stored over winter in cold climates are especially vulnerable to internal corrosion from moisture condensation inside the engine.

3. Do I need to fog a fuel-injected (FICHT or E-TEC) Evinrude outboard?
The fogging procedure differs for fuel-injected engines vs. carbureted models. Refer to your specific engine's service manual for the correct winterization procedure — some EFI and direct injection engines have specific fogging instructions or use a different product. Contact us at MacombMarineParts.com if you need guidance on the correct winterization product for your engine.

4. Does fogging oil damage spark plugs?
Fogging oil will foul spark plugs during application — this is normal and expected. Many technicians remove and replace spark plugs as part of the same winterization service. If you don't replace plugs at winterization, remove and inspect them at spring commissioning before the first start of the season.

5. Can I use this on non-Johnson/Evinrude outboards?
While BRP fogging oil will provide protective benefits on other brands of outboard and inboard engines, we recommend using the OEM-specified fogging product for non-OMC engines when available. For Johnson and Evinrude outboards, the BRP #0777186 is the correct factory-specified product.