Answer by Pᴀᴜʟsᴛᴇʀ2 for What does the "HD" stand for in SAE HD-30 oil?
It says it just above the numbers:
View ArticleAnswer by Solar Mike for What does the "HD" stand for in SAE HD-30 oil?
HD stands for High Detergent. At least in the “normal” rating of oils.Usually used for diesel engines to help keep them clean.Not a good idea to use in gas engines as it can clean the bores of old...
View ArticleWhat does the "HD" stand for in SAE HD-30 oil?
I'm not sure if this is still the SAE 30 oil. Does the "HD" stand for "Heavy Duty" or High Detergent? Thank you!
View ArticleAnswer by Vince for What does the "HD" stand for in SAE HD-30 oil?
"HD" on sae 4 cycle motor oil labels stands for "high detergent". It is a better oil to use on a new small 4-Cycle engine as it will help to keep the engine cleaner and run smoother longer. The only...
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