I have a 1999 RAV4 with 120,000 that's vibrating at Stops when in Drive, but not when in Neutral. Would it help long term if I used Neutral when stopped? OR should I start looking for another car? I'm not a mechanic. Thanks
This hardly sounds like a problem for which the whole vehicle needs replacement.
The symptoms could be explained by a misfiring cylinder, in which the vibrations are most obvious at idle and with the drivetrain engaged.
Common causes for misfires include ageing spark plugs/wires, absence of spark or improper fuel delivery (usually a clogged fuel injector).
I would not put it in neutral every time you stop. You risk premature wear and tear on the shifting mechanisms.
It depends on what you mean by vibration. A little (slightly inconsistent) vibration when idling is just fine and is not worth doing anything about.