And I finished the engine oil change I started over the weekend and sent off the sample to Blackstone.
It had 5-year old Valvoline traditional 10W30 with around 500 miles on it from the last change in 2017. I went with Mobil-1 10W30 this time. These big engines take 9-1/2 quarts to fill. And I used a Wix 541085XP filter. As far as I know, it's the best filter there is on the market.
A good friend of mine has a vintage case of STP Oil Treatment from 1973 and he gave me one to throw in the Viper.
It's got the good old oil additive stuff in it from when we were kids!
It's got real sugar I tell ya. None of that fancy, schmancy high fructose corn syrup for my baby.
Last edited by njsteve; 10-26-2022 at 11:38 PM.
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