D & S Automotive & Wrecker
Why high mileage oil?
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A Little About Motor Oil

I know by now you have all seen the commercials for “high mileage” motor oil. You know, the one where the engine jumps out of the vehicle and speeds over to the shop to get some oil. Maybe you have seen the one where the engine jumps out and spits black goop all over the guy standing in the driveway. “High mileage” motor oil seems to be every place you look lately. I also see it advertised for older SUV’s. Older SUV’S?! Give me a break! Could it be that the reason it is formulated for older suv’s is because suv’s have sold like hotcakes for the last few years and every soccer mom wants or owns one?


I finally had enough and set out to find out what all of the hoopla is about. I quickly found out that real information on this type of motor oil is hard to come by. Oh sure, they have a recommended high mileage oil for just about any contraption that a person could own. But, what does it do? Why do I need to rush out and get some? These oils claim to have an additive that prevents carbon build up. If that were the case wouldn’t I want it in my brand new vehicle so it doesn’t get all nasty to begin with? These oils also claim to offer a “higher level” of protection for my high mileage engine. Maybe I just don’t get it but I would think I would want the highest level of protection that for the vehicle that I had just paid $20,000 to $40,000 to buy. Yes I would want to protect my old beater too but wouldn’t my new vehicle last longer if I started out protecting it when it was new? If this oil has all of these capabilities, why aren’t they marketing it for newer vehicles? Another claim to fame this oil has is leak protection. The makers claim this oil helps with all of those pesky oil drops you see on your driveway. The way they do this is a “special additive”, we call it solvent that reconditions seals. What happens sometimes is that a rubber seal or gasket that has been heated up and cooled off for 80,000 miles tends to lose it’s elasticity and becomes hard as a rock. Sometimes an additive can be added and it “MIGHT” keyword being might soften the seal and help with sealing the leak. Sometimes that rock hard seal just has to be thrown away and replaced too. Ok so the seal conditioner might have a small chance of doing a higher mileage engine some good, but the previous two claims really don’t entice me into running out and buying some of this oil. I have never been too enthused about a cure in a can. If it’s broke, fix it. Maybe there is more to this than meets the eye, but if there is I am not finding any of the information. If I learn otherwise I will be sure to let you know but at this point I just can’t see any reason to use it.

Post Tags:Maintenance

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