Amsoil Authorized Dealers John & Zenaida Cardell

5W-30 (OEF)

Amsoil OE 5W-30 Synthetic Motor Oil (OEF)

AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil helps provide better wear control, improved high- and low-temperature protection and increased fuel economy compared to conventional oils. The oil drain interval recommendations for many of today's vehicles extend well beyond the traditional 3,000-mile interval, especially when electronic oil monitoring systems are used. AMSOIL OE Oil provides excellent protection and performance for the entire length of the original equipment manufacturer's recommended drain interval.

AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your engine.

Better Gas Mileage

Formulated with friction modifiers, AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is a fuel-efficient oil that reduces friction-related energy loss. It provides better fuel economy compared to conventional, non-fuel-efficient motor oils.

Package Sizes (OEF)

Code Sizes Units
OEFQT (OEFQT-CA) Quart Case of 12

Lowers Maintenance Costs

AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is friendly toward modern emissions-control systems, promoting proper operation of catalytic converters for optimum service life and low exhaust emissions.

Protects Against Extreme Temperatures

AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is a multi-viscosity formulation. It resists the effects of thermal breakdown, including evaporation and viscosity loss, while remaining fluid in cold temperatures for easier cold starts and fast startup circulation.

Engines Stay Clean

Fortified with high levels of detergent and dispersant additives, AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is engineered to resist sludge and carbon deposits better than conventional oils. It promotes clean operation for longer-lasting, better-running engines.

Bid Appropriate

AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil fulfills the requirements of most public and private purchasing bids. It is cost-effective, making it ideal where synthetic motor oil is specified.


AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:
OW-20 (OEF):

  • API SN PLUS (Resource Conserving), SM...; GM dexos1 Gen 2 (supersedes LL-A-025, 6094M and 4718M); ACEA A1/B1,A5/B5; Chrysler MS-6395; Ford WSS-M2C946-A, WSS-M2C929-A; ILSAC GF-5, GF-4...


AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is compatible with conventional and other synthetic motor oils. Mixing AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. Aftermarket oil additives are not recommended for use with AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil.

Service Life

In gasoline-fueled vehicles, AMSOIL OE 5W-30 (OEF) Synthetic Motor Oil is recommended for the intervals stated by the vehicle manufacturer or indicated by the oil life monitoring system. Change oil filter at every oil change.

AMSOIL Signature Series Synthetic Diesel Oil
Kinematic Viscosity @ 100ºC, cSt (ASTM D445) 11
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 63.4
Viscosity Index (ASTM D2270) 168
CCS Viscosity @ °C, cP (ASTM D5293) 4555 (-30)
Flash Point ºC (ºF) (ASTM D92) 220 (428)
Fire Point ºC (ºF) (ASTM D92) 234 (453)
Pour Point, °C (°F) (ASTM D97) -44 (-47)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 9.4
High-Temperature/High-Shear Viscosity, cP (ASTM D5481) 3.3
Total Base Number (ASTM D2896) 8.0

Subscription form
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