Car is a 1993 Mazda 626. 2.5l V6 with automatic overdrive transmission. It has 170,000km on it. Driving is mostly short trip city. About a week ago I changed the oil. It's got Mobil1 0W30 synth, with 1/2 quart of Quaker State synth ATF and about 2 ounces on MolySlip E added in. Oil filter is an oversize Purolater PureOne ('93 Corvette Z1) ...so, what is a reasonable OCI? With the ATF and moly in the mix is it still reasonable to get the oil analyzed, or will it mess up the results? Thx!