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  1. P

    UOA for BMW

    I had Blackstone perform a UOA on a BMW 740il with 35K miles on the engine and 10k miles on the oil. The oil had been last changed 11 months ago at the BMW dealer, and I assume that it had BMW Long Life oil in it. I don't want to type in all the numbers but Blackstone writes "universal...
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    synthetic oil for BMWs

    My BMW has a computer that monitors the oil and driving habits to tell the owner when it is time to change the oil. Typically, the oil change itervals specified by the computer are 10,000 to 15,000 miles. I am used to an interval of 5,000 miles for synthetic oil. Is 10,000 to 15,000 miles too...