Glossary

Select a letter to go to the terms beginning with that letter.

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WAF

Water Accumulated Fraction

WAFI

Wax Anti Settling Flow Improver

WASA

Wax Anti Settling Additive

WCM

Wax Crystal Modifier

WDFQS

Winter Diesel Fuel Quality Survey

WFD

Waste Framework Directive

WHDC

World Harmonized Drive Cycle

WLTP

Worldwide Harmonized Light Vehicles Test Procedures

WOE

Weight of Evidence

WOT

Wide Open Throttle

WOTAG

Waste Oil Technical Advisory Group (UK)

WTD

Weighted Total Demerits (of engine test ratings)

WTI

West Texas Intermediate

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