To answer your question, no, sewing machine oil isn't thinner than
penetrating oil.
Ed Huntress


Thanks Ed.
I was trying to suggest something that might unstick the OP's stiff
reverse lever. WD is something you can find anywhere easily, and he
might have had some to hand. Lubrication wasn't the issue, initially anyway.
Both you and Dave have kindly helped with many little queries I've
posted here in the past.
Keep it up!

Jordan