It appears VRP could potentially have an effect on the coating of the black type Toyota OEM crusher washers. I have both the black and blue types on hand so I will be doing more testing. First time this has happened and it’s the first run of VRP for reference.
As I’ve said before, I think VRP is an intriguing product, but we still don’t know what we don’t know yet.
‘23 Toyota Sienna Hybrid XLE
41,860 miles / 4,980 miles OCI
Out/In: Valvoline Restore & Protect 0W20 / 90915-YZZN1
2nd run of VRP. My son did most of the work while I supervised and supported.
Interesting thing happened with the black type OEM crush washer. The rubber or whatever it is coating on the washer came off and adhered to the drain pan and bolt. I was able to scrap it off fairly easily with a screwdriver. However this has never happened prior to using VRP. I have a supply of the blue coated OEM washers on hand so I used one of those on this OCI to see if it happens again. No...