Gasoline Engines
Category |
Status |
Service |
|---|---|---|
|
SN |
Current |
Introduced in October 2010, designed to provide improved high temperature deposit protection for pistons, more stringent sludge control, and seal compatibility. API SN with Resource Conserving matches ILSAC GF-5 by combining API SN performance with improved fuel economy, turbocharger protection, emission control system compatibility, and protection of engines operating on ethanol-containing fuels up to E85. |
|
SM |
Current |
For 2010 and older automotive engines. |
|
SL |
Current |
For 2004 and older automotive engines. |
|
SJ |
Current |
For 2001 and older automotive engines. |
|
SH |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1996. May not provide adequate protection against build-up of engine sludge, oxidation, or wear. |
|
SG |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1993. May not provide adequate protection against build-up of engine sludge, oxidation, or wear. |
|
SF |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1988. May not provide adequate protection against build-up of engine sludge. |
|
SE |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1979. |
|
SD |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1971. Use in more modern engines may cause unsatisfactory performance or equipment harm. |
|
SC |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1967. Use in more modern engines may cause unsatisfactory performance or equipment harm. |
|
SB |
Obsolete |
CAUTION: Not suitable for use in most gasoline-powered automotive engines built after 1951. Use in more modern engines may cause unsatisfactory performance or equipment harm. |
|
SA |
Obsolete |
CAUTION: Contains no additives. Not suitable for use in most gasoline-powered automotive engines built after 1930. Use in modern engines may cause unsatisfactory performance or equipment harm. |
Diesel Engines
Follow your vehicle manufacturer’s recommendations on oil performance levels
Category |
Status |
Service |
|
CK-4 |
Current |
API Service Category CK-4 describes oils for use in high-speed four-stroke cycle diesel engines designed to meet 2017 model year on-highway and Tier 4 non-road exhaust emission standards as well as for previous model year diesel engines. These oils are formulated for use in all applications with diesel fuels ranging in sulfur content up to 500 ppm (0.05% by weight). However, the use of these oils with greater than 15 ppm (0.0015% by weight) sulfur fuel may impact exhaust after treatment system durability and/or oil drain interval. These oils are especially effective at sustaining emission control system durability where particulate filters and other advanced after treatment systems are used. |
|
CJ-4 |
Current |
For high-speed four-stroke cycle diesel engines designed to meet 2010 model year on-highway and Tier 4 non-road exhaust emission standards as well as for previous model year diesel engines. These oils are formulated for use in all applications with diesel fuels ranging in sulfur content up to 500 ppm (0.05% by weight). |
|
CI-4 |
Current |
Introduced in 2002. For high-speed, four-stroke engines designed to meet 2004 exhaust emission standards implemented in 2002. CI-4 oils are formulated to sustain engine durability where exhaust gas recirculation (EGR) is used and are intended for use with diesel fuels ranging in sulfur content up to 0.5% weight. Can be used in place of CD, CE, CF-4, CG-4, and CH-4 oils. Some CI-4 oils may also qualify for the CI-4 PLUS designation. |
|
CH-4 |
Current |
Introduced in 1998. For high-speed, four-stroke engines designed to meet 1998 exhaust emission standards. CH-4 oils are specifically compounded for use with diesel fuels ranging in sulfur content up to 0.5% weight. Can be used in place of CD, CE, CF-4, and CG-4 oils. |
|
CG-4 |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered automotive engines built after 2009. |
|
CF-4 |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered automotive engines built after 2009. |
|
CF-2 |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered automotive engines built after 2009. Two-stroke cycle engines may have different lubrication requirements than four-stroke engines, so the manufacturer should be contacted for current lubrication recommendations. |
|
CF |
Obsolete |
OBSOLETE: Introduced in 1994. For off-road, indirect-injected and other diesel engines including those using fuel with over 0.5% weight sulfur. Can be used in place of CD oils. |
|
CE |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered automotive engines built after 1994. |
|
CD-II |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered automotive engines built after 1994. |
|
CD |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered automotive engines built after 1994. |
|
CC |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered engines built after 1990. |
|
CB |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered engines built after 1961. |
|
CA |
Obsolete |
CAUTION: Not suitable for use in most diesel-powered engines built after 1959. |