You guys frequently use terms like Group 4 to describe engine oils. I've searched this and API's sites for the definitions, to no avail. Could someone pls post a link to the API definitions?
Engine-oil groups
- Thread starter Jeffrey Behr
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The groups you are refering to are in regards to the base oils. It was recently discussed here: http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=1;t=004920#000002
TYVM, medic. That's exactly what I was looking for and hadn't found.
I just happened to ask that same question a few days ago. I received some great info! I too was curious as to what it all meant, and those answers summmed it up.
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