Honda Mfg. recommends a 5-20 wt oil in my Honda Accord

I always use 20-50 in everything ..go heavy r -wt

Rings are most likely sludged and sticking causing excessive oil use. Stick to 5W20 oil for that engine!! The heavier oil will NOT help , in fact ,on that it could make things worse.MAYBE GM tech with experience with stuff they had for carbon deposit removal on their engines? Might be worth a shot.