Sj Vs Sl Oil
And if there is no api donut on the motor oil label beware because there is a chance you could be buying coffee without the donut.
Sj vs sl oil. Not suitable for use in most gasoline powered automotive engines built after 1996. For 2004 and older automotive engines. 1997 gasoline engine service. If it s not an sn sm sl or sj then it s an obsolete oil.
Four stroke high speed diesels manufactured from 2010 ci 4. Oils meeting api sl requirements have been tested according to the american chemistry council acc product approval code of practice and may utilize the api base oil interchange and viscosity grade engine testing guidelines. Car from 2003 and you have different oils available. Sm the current spec is newer than sl and generally good for all sl applications.
Api sj sm or sn. In this case you need api sl so an api sj lower cannot be good. May not provide adequate protection against build up of engine sludge oxidation or wear. Vehicles built between 1998 and 2002 for full details consult the api motor oil finder.
As also explained earlier more modern oils are not necessarily adapted for older engines. The answer is look for the letters that follow the words api service in the api donut. For 2001 and older automotive engines. For vehicles built between 2002 and 2010 ch 4.
You may have a hard time finding oil that isn t sm on the shelf. They may be used where api service category sj and earlier categories are recommended. Therefore the oil with sh level would be more adapted. Sl is newer than sj and good for all sj applications.