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Re: Valvoline Premium Blue Extreme oil in VW TDI
Posted to Technical Discussion Forum on 7/23/2023 1 Reply

In all fairness, I had a customer with a TDi who always brought his own bulk 15w40 in an old windshield washer jug (from his nephew's truck shop).

Car was fine for the decade I serviced it.

He was RELIGOUS about his time interval though...loved the car and... Login to read more.

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