Valvoline Restore and Protect 2AZ-FE Observations & Questions

Stick with the VRP and give it the full 4x OCIs. My own yearlong experiment with it was STILL showing cleaning after the 3rd OCI. But this was also in a very varnished old Honda J35a7 with over 200k on it.
How effective was it with the varnish? I imagine that takes some time.
 
You won't really know if the VRP is continuing to clean until you cut the filter or otherwise inspect it (if it's a toyota cartridge filter). VRP cleans and parks the residue in the filter.


VRP can undo deposits, but the long term effects of all the prior miles with deposits cannot be undone. Wear is wear and damage is damage-- they are the eternal entropy of engine life.
Exactly...once engines start to wear, rate of wear only accelerates.

VRP is great, and this story is compelling.

My 2005 Tacoma 2TR-FE 2.7L 4 cylinder consumed oil, but I got 750k miles out of it.

I have adopted a maintenance plan involving consistency and using highest quality synthetic from very early in vehicle life.
 
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