The FSM for my car is electronic, so unless I print it out, there’s no paper version available. I got a Haynes manual, but it’s quite basic and combines two different model generations and 3 different engines into it, so it’s not very specific when it comes to my exact car. So my info comes on the computer for the most part.

I have the set of three GM factory shop manuals for my Roadmaster.
I also have the Haynes manual, but it’s just about worthless compared to the FSM.
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I recently fixed my ’99 Miata by doing a web search. The 99′s have a small passage in the top of the intake manifold that gets clogged, and then throws a code for the EGR valve. Without the ability to do the web search, I would have spent hundreds for a part that I did not need.
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The same goes for my RoadMonster. Without the support of Buick B-Body Forums, I would not have ever been able to do the mods that my car has…
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Sure, I refer to the manuals, but I check with my forum buddies first.
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Thank you internet!!!!

anything with torque numbers. then cheat them for all thier worth. The first knowledge being internal combustion, gasoline, trial and error with durability, injected and carbed, electronic ignition or others. If you have a memory more than a day…it boils down to challenging torque numbers and bizarre alien electrical systems…the rest is what cars suck and cars don’t.