How Often Should Synthetic Motor Oil be Changed? Amsoil can go 25K

“It used to be common practice in the 60’s and 70’s to change oil every 3 to 5 thousand miles. Amsoil Synthetic oil reduces maintenance, annual oil costs, and there is less waste oil disposal. Amsoil synthetic Signature series oils can go 1 year or 25K miles under normal driving conditions, or under severe operating …

How Often Should Synthetic Motor Oil be Changed? Amsoil can go 25K Read More »