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Reply to "Oil changes"
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[quote=Anonymous][quote=Anonymous]Acidity is the enemy in those situations. Use a quality synthetic oil unless specific contraindications, change once a year (and filter) or every 7,500-10k miles unless warranty is still in effect. If so, do what the manufacturer specifies.[/quote] P.s. I’ve done used oil analysis on several vehicles over 20 years. None of them, no matter what mileage driven, could go more than 12-15 months before “TBN” (acidity) rose too high and it was time for a change. Thus, the 12-month prudent interval for low mileage vehicles. When oil acidified it’s eating up your engine from inside (seals, etc.).[/quote]
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