If dirty clean with Murphy's oil and let dry completely. Then instead of olive oil or neatsfoot oil, use Lexol's Neatfoot, not plain Lexol.. It use to be called Lexol NF. It binds the leather fibers and is not sticky like straight neatsfoot. Use a small brush to apply and then let it soak in out in the sun. Then wipe off excess.People started to use olive oil because it would not turn rancid, but it has no redeeming qualities of protecting or rejuvenating leather.
Neatsfoot oil was noted for hastening the deterioration of cotton thread that was used on saddles and tack years ago.Nylon thread stopped that.
https://www.amazon.com/Manna-Pro-Le...mp;psc=1&refRID=6BFM4ZQ3HVF5XMD1P5FHIt comes in a spray bottle too.