A mid-octane grade of gasoline that does not contain lead additives, typically between regular and premium unleaded.
ULM
Definition
Unleaded Mid-grade Gasoline
ULM means Unleaded Mid-grade gasoline.
✓ Verified term
Unleaded Mid-grade Gasoline
ULM means Unleaded Mid-grade gasoline.
A mid-octane grade of gasoline that does not contain lead additives, typically between regular and premium unleaded.
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