Buick 1993 Century Owner's Manual page 239

Then, without shutting off the engine, follow these
steps:
rhe dipstick on the 3300 V6 engine looks like this.
k
The dipstick on the 2.2L L4 engine looks like this.
1,Pull out the dipstick and wipe it with a clean rag or
2 . Push it back in all the way, wait three seconds and
paper towel.
then pull it back out again.
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