1990 Mazda LX 6/626

We recently purchased a 1990 Mazda LX 6/626 from a private party. There was no owner’s manual with it. I have tried searching the internet to find one. I can find lots of owner’s manuals for the MX 6/626, but not the LX. Would the MX manual be close enough? What’s the difference between the two models? I have been unable to find anything about the LX 6/626 so far.

Differences between models is normally limited to options.

Drivetrains, etc. are standard equipment.