Switching to a think 20w50 oil will reduce your oil consumption, but it's ability to flow where it needs to flow and lubricate where it needs to lubracate won't be as good. In the bearings it will heat up, shear down, and sludge up your engine making things worse.
You are much better off to clean up the rings, seals, and oil pasages with an Auto-RX treatment and keep running the same oil you have been 10w-30, adding as you need to.
Some engines burn oil because a lower ring in the ring pack gets stuck, and the grooves all line up in a row. When this happens oil just flows along the ring grooves.
If it's an older engine design you can get by with something like Delvac 1 5w-40, but not a 98 Triton. It will work, but in the long run it's not better.
Last edited by greencrew; 01-06-2004 at 08:00 PM.