your mileage may vary

Outcomes aren't guaranteed

Your mileage may vary is a disclaimer that results or experiences may differ from what's being described.

Originally from car advertisements noting that fuel economy varies by driver and conditions, it now applies to any situation where outcomes aren't guaranteed: The diet worked for me, but your mileage may vary.

Often abbreviated YMMV in online writing.

Related

opinions · disclaimer · caveat · buyer beware · at your own risk · individual · depends · unpredictable · inconsistent · hit-or-miss · anecdotal · personal · reviews · expectations · circumstances · trial-and-error · feedback · testimonial

Opposites
certainty of outcome

your mileage may varyguaranteed

Promised with certainty

foolproof · surefire · ironclad · fail-safe · certain

universality

your mileage may varyuniversal

Affecting all equally

across the board · no exceptions · without fail · invariably · always

commitment level

your mileage may varymoney-back guarantee

Pledge to reimburse dissatisfied buyers

satisfaction guaranteed · I promise · count on it · bet on it · take it to the bank

Family

yourself, yourselves, mileage, varying, variably, variety

Familiarity
Top 200,000
Profile
Timeless · Abstract · Everyday, not technical · Rated G