Last time I used AutoRX was more than 10 years ago, back when my car was not that old yet (10 years).
Now it is 20 years old, 260k miles, burning oil, short trip, and just recovered from a head warp / gasket leak, I'm thinking about trying out something that can clean up the ring pack.
Would you say Auto-RX plus these days are still worth it? or frequent (i.e. every 2.5k miles) Pennzoil Platinum / Valvoline SynPower is good enough?
Now it is 20 years old, 260k miles, burning oil, short trip, and just recovered from a head warp / gasket leak, I'm thinking about trying out something that can clean up the ring pack.
Would you say Auto-RX plus these days are still worth it? or frequent (i.e. every 2.5k miles) Pennzoil Platinum / Valvoline SynPower is good enough?