I have a 2004 Tahoe with the 5.3. I developed the lifter tick years ago. I used a treatment called KREEN. This is strong so if you want to try it be sure to read the instructions. It worked in 30 minutes of driving. This was around 4 years ago and the tick has not returned.
Best oil and oil additive for a Silverado 5.3 lifter tick?
- Thread starter blue07silvy
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Every failed lifter I’ve seen in an AFM engine was stuck because of varnish.
Probably won't come back but that engine doesn't have AFM. Biggest mistake GM ever made. People say it was the EPA that made them do it but if that's true why do the 5.6 in the Nissan Titan not have something like it? Ford, GM, RAM, Toyota all have some type of AFM/DOD
Now wait a minute... Lucas has served me very well lubricating a squeaky hinge on the back gateLucas is nothing but the worst Group I bright stock and a ton of VII polymer, avoid it at all costs.
You should hunt around the headers and check to make sure the gasket hasn't blown out, I had that happen on my Mustang. I'd want to be 100% sure it's not exhaust before I condemn the motor
Try some Amsoil Signature 0w-40. My 5.3 L84 is hard to hear it running now.
Triple_Se7en
$50 Site Donor 2024
Any oil 0w is not the best remedy for sound reduction. 5,10,15 and 20Ws in 30-40-50 viscosity increase your odds, should you experiment by blending-in the same exact additives package and base oils with it.
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That doesn't make sense in regard to oils like euro C3 and A3/B4 0w30 and 40. Those have a minimum HTHS of 3.5 and have higher kv@100C than pretty much all non euro 5w30, 10w30 and 10w40 oils. 15w40 and 20w50 might have higher values but won't be as robust in additive package and wont have as high of quality base oil blends.
That being said op has a mechanical issue that oil isn't going to fix. The afm/dod lifter design is poor, kind of like those kia/Hyundai engines you're constantly trying to quiet down. At least theres a fix for the GM engines
(afm/dod delete cam/lifters/tune).
No additive needed. Unless you can justify using one.
My vote is Valvoline EPHM 5w30
No, it doesn’t make sense.That doesn't make sense in regard to oils like euro C3 and A3/B4 0w30 and 40. Those have a minimum HTHS of 3.5 and have higher kv@100C than pretty much all non euro 5w30, 10w30 and 10w40 oils. 15w40 and 20w50 might have higher values but won't be as robust in additive package and wont have as high of quality base oil blends.
That being said op has a mechanical issue that oil isn't going to fix. The afm/dod lifter design is poor, kind of like those kia/Hyundai engines you're constantly trying to quiet down. At least theres a fix for the GM engines
Winter ratings are one of the most misunderstood concepts on this board.
4WD
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What’s the latest here?
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This only works if varnish has time to build up. Doesn't explain lifters failing in <5k, <10k, or even up to <20k miles on new trucks.
The failed lifters across all manufacturers have been proven to be inferior materials used for lifters AFM or otherwise. The sad part about the GM V8s is the heads have to be removed just to check-pull-change them. Caught early, a camshaft can be saved. Left to continue, it will ruin the cam sending metal glitter throughout the engine. A complete engine job or replacement is in order. The AFM disabler does nothing to reverse the degraded wear from inferior lifters. They remain in the engine to fail at anytime.
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