Arcane abbreviations found herein -

I am befuddled by abbreviations that abound here.
OP?
PPI?
Etc,
I know why they are used. I realize that perhaps the veteran readers/posters here are well aware of what they mean.
BUT FOR SOMEONE SUCH AS I, AND I HAVE TO SUSPECT, MORE THAN A FEW OTHERS, ARE SIMPLY PUZZLED BY THEM.
Context occasionally conveys meaning - but to me, the majority of the time, it does not.
Just passing on a reaction.

But there are others, not infrequently used, that I have seen that leave me in the dark. I cannot remember all of them.
It's not realistic for me to expect, I guess, that when someone uses a term with which they are very familiar, they don't explain it.
Maybe there could be a section for "jargon," on which we uninitiated could check out a term or abbreviation?\
I know I am not the only poster/reader here who has this difficulty.

I don't bother to search on the net what it means , I know it's related to fuel consumption that's it

Honestly, a list of abbs would be a useful too
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Reply in thread and ASK..
Easy... if they do not then they are not nice members and move on
Heck some make up their own abbreviations due to lazy at typing or that typing on a dayum cell phone













