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Re: Catastrophic Engine Damage, LSPI, SPI & Mega Knock
Posted to Technical Discussion Forum on 6/21/2023 10 Replies

I dont believe any oil reduces fuel efficiency.....to any significant degree.

ran my ABA VW Jetta on Rotella t and a litre of Lucas for 15 years.....to keep the oil light off.

started as a temp fix till I could find another engine.......never bothered

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