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Just looking for opinions...I use valvoline Max life non-synthetic 5w30. My 2.2 has 198k HAAARD miles and has developed a knocking noise. not sure if its top or bottom end. Im trying to make this motor last, considering i need it as a daily driver and funds for rebuild are unavailable. I used to have a 95 Ram and when the motor was on its last leg, i used Lucas and extended its life by a year! (It ran on pure lucas) Wondering if substituting a quart at every oil change will be beneficial or detrimental...
 

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I dont think it would make that much of a difference to be honest. Most knocking comes from being low on oil so make sure you are always at full and see if it gets worse.
 

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I'm not sure if the timing chain tensioner could handle the thicker oil. Would probably do more harm than good. Best bet is to drive it like a normal a-b car and do your oil changes every 3000 miles.
 
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