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Re: Valvoline Premium Blue Extreme oil in VW TDI
Posted to Technical Discussion Forum on 7/27/2023

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I just called him, and he uses the 'Signature Series' synthetic Amsoil with an extended-life Amsoil filter and changes it once a year, 15K miles; he does 60% highway and uses less than 1/2 qt. betwee... Login to read more.