ENGINE OIL PREMIUM SEMI-SYNTHETIC BLEND 25W40 - 4L
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ENGINE OIL PREMIUM SEMI-SYNTHETIC BLEND 25W40 - 4L

Product Code: AMMA25W40SYNG

AMMA MARINE® OIL FOR 4-STROKE MARINE ENGINES
Amma marine oil is a premium semi-synthetic motor oil, designed primarily for outboard engines, semi-outboards and 4-stroke marine interiors. Thanks to its formulation, it offers excellent protection against wear and minimizes the formation of sludge and varnish while resisting the thermal degradation of the viscosity at high temperature. It also protects against rust and corrosion of bearings caused by moisture while resisting excessive frothing and air infiltration. Its semi-synthetic composition provides additional thermal stability at high temperatures, extreme regimes and loads. Meets and exceeds  API quality performance SJ, CF-4 and CH-4. Will not void manufacturer’s warranty. Also for use in supercharged Mercury Verado.

For use in 4-cycle outboard, sterndrive and inboard engines
Most recommended OEM marine engine oil

REMPLACE SIERRA: SIE18-9400-2, SIE18-9440-2, SIE18-9440-8, SIE18-9440-2-CAT
SIE18-9400-2-CAT
REMPLACE QUICKSILVER/MERCURY: QUI92-8M0078633, QUI92-8M0078635, STARBRITE 028332

Applications - for all 4-stroke engines:
  • Boats - Watercraft - Snowmobiles - Motorcycles

Features and Benefits:
  • Resistant to thermal degradation of viscosity at high temperature
  • Protects against the formation of sludge and varnish.
  • Reduces friction and protects against wear.
  • High viscosity stability at high temperatures.
  • Protects the bearings from rust and corrosion.
  • Increased protection against scum and air infiltration.

Amma Marine products are quality built products, specifically tailored to the marine pleasure boat market. With an Amma Marine product you know you will enjoy it for a long time. Amma Marine stands by its products and offers the best warranty in the industry. Should you have a problem with any Amma Marine product, contact your closest Amma products retailer, and in most cases, they will be happy to offer you an over-the-counter exchange. Patent pending.


  • Suggested Retail Price: $64.98