If he drives 15k miles a year I would use QSUD and do 2 oil changes a year. The extra cost per thousand miles is no more than 50 cents, what can you do with 50 cents now a day ? Not even enough for a cup of coffee.
Garak said:If it were a dollar more here, I might agree. It's a few dollars more up here. I get Delvac 1 for cheaper than Defy.
What is annoying me about the product is, as I mentioned in a couple other threads, that a high mileage was customarily thicker in grade, with extra AW additives, and extra seal conditioning agents. If it's SN/GF-5 certified, those extras disappear very fast. QSGB and its SOPUS brethren are already near the GF-5 limits for phosphorous, so Defy won't have a lot extra. It won't be any thicker within the grade, either, since the GF-5 limits are within fairly narrow limits of the 30 grade. And the seal conditioners/swellers will certainly have to fall within seal compatibility rules for GF-5. So, if a person has a new vehicle, and it calls for an SN/GF-5 lubricant, they buy an SN/GF-5 lubricant. If someone wants something with extra additives and thicker within the grade, another SN/GF-5 lubricant isn't the answer.
Throw a dexos1 label on it and make it worth it. Mobil is a bit schizoid on the whole issue. In Canada, Mobil Super 2000 is an SN/GF-5 high mileage oil, one of the first ILSAC certified ones, and I was never happy with the product. At least Mobil 1 HM has the sense to be an A3/B3 type lubricant. [/qull
huh that's funny that there a greater price difference in the 2 up there qsgb 14 + and defy is 15+ here. Is the Sn g5 defy still a syn blend? To me ots with a dollar for syn blend down here.