How can i lift the mini, simply, without any machines in order to replace oil or fix minor stuff underneath? Any DIY solutions?

 

 

Build a ramp.....scrap 2x6 lumber...some screws...maybe some building adhesive or glue ..
Think Lego block style.... Steps...better than any set you will ever buy. Can make it shallow if you are lowered....
And free if you know where to look for scrap lumber...one longer piece for each...3 foot long oorso...and a bunch of end chunks...like the parts when a deck is built....could use 2x8 for the top part if you want...maybe add some Feet to make the base wider for extra stability...
Build 2...store stacked as a block in the cornor of the garage...
Or buy a set...harbour freight has a set...choice of Polly or steel for about 35$.

 

Go get one of these. It will lift up the Mini until both wheels on 1 side are off the ground. This one is $28 at Harbor Freight.


And get a pair of these so the Mini doesn't fall on you while you underneath.