Is there a right or wrong way to insert the dipstick?
2 Answers
The dipstick must be inserted back in the correct orientation. The engine oil dipstick is generally located next to the engine, either on top or on the side. Here is some relevant information about the dipstick: 1. Introduction: The dipstick has a distinct feature, which is a pull ring, making it easily identifiable. When using it, take a towel, pull out the dipstick, wipe it clean with the towel, and then reinsert it into the dipstick slot in the engine until it is fully seated. 2. Precautions: After leaving the car overnight or parking for half an hour, make sure to accurately check the oil level position on the dipstick. Do not just check one side of the dipstick; you must check both sides and use the lower reading as the accurate measurement.
I actually thought about this when I changed my oil last time. Most dipsticks are designed to be user-friendly with a round insertion port that isn't orientation-specific. I've tested it - whether you insert it one way or the other, the oil level reading stays consistent. But in my decade as a mechanic, I have encountered a handful of older models with dipsticks that have alignment slots - those do need proper orientation to insert fully. If you're concerned, here's a foolproof trick: mark the exposed part with a permanent marker during first insertion, then just align with that mark next time. The critical thing is ensuring full insertion - you should hear a 'click' or feel it bottom out, otherwise the oil measurement won't be accurate.
