430 Poll: How to properly check oil level???

All right guys. I need to know the proper way of checking the oil level, manual says just to rest the cap on the oil tank but everyone here and on YouTube seems to say to insert the cap into the grooves so it drops down but don't turn it. That's two very different ways of doing it. Obviously if you place the cap into the grooves and it drops down that changes the oil level reading drastically.

From the OM
"The cap with the oil dipstick must be resting on the oil separator filler neck."

To me that means just rested on the filler neck don't insert the grooves so that it drops down.

 

The difference is over 16mm, and the low to high mark is 55mm, so you are potentially seeing that the oil is right at the middle where it should be and in fact its low if you are supposed to measure with it just resting on the filler neck and not insert it into the slots.

Left pic is with the cap inserted into the slots and right pic is with the cap resting on the filler neck and not instead into the slots.

On my Aprilia Tuono V4 the manual specifically says to measure the oil insert the cap with measuring stick into the oil fill hole but do not thread it in, just let it rest on it, which is sort of what it says in the Ferrari book, so this is why I am confused about all the youtube vids and post here where people insert the cap into the slots allowing it to drop down.

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Do we have a Ferrari master tech in this forum that could help to shed some light on this important topic?

 

So you just rest it on the neck, not actually putting it into the slots and letting it drop down?

 

4:20 is what everyone seems to be doing, which I agree is not what the OM says, so everyone seems to be running their cars near the low oil level if they are aiming at being half way between high and low but are dropping their oil cap all the way down to measure.

 

Yes..OM says what temp to check it at, thats a known, just trying to determine what the resting spot of the oil dipstick is.

 

Me. Must be the engineer in me. Feel free to run your car 1/2 a quart over or under, I'd like to know the exact level.

 

Agree, but trust me its a thing, I'm willing to bet a ton of people are checking the oil level with the cap inserted into the grooves.
For example look at this:

The internet is full of misinformation unfortunately, which is why I wanted to start this thread and poll ppl on how they do it.

 

Agree.
Yeah, I know its an F8, but title of video says How to check oil level on a dry sump Ferrari. Craziness.