Yearly will work, changing it before you put the car away for the winter. Acids can build up over time in the oil/crankcase, as well as in the cooling system. Are you changing the coolant every 2-3 years?
Yearly will work, changing it before you put the car away for the winter. Acids can build up over time in the oil/crankcase, as well as in the cooling system. Are you changing the coolant every 2-3 years?
John in VA
NCC concours program
'74 2002tii
'85 535i
'86 535i
'03 530i
'06 330ci ZHP
'15 228i M Sport
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