Changing your oil too much is bad!?
#16
Evolved Member
Would those "important impurities" be water, gasoline, sludge and dirt?
There are important additives. Years ago Pennzoil let go a batch of engine oil without antioxidant. My engine oil turned to sludge. When I had my engine torn down and as I was busy removing this thick layer of baked on oil, it smelled like hot buttered pot corn in front of a movie house. I had my car back on the road before Pennzoil announced they were buying users new engines.
There are important additives. Years ago Pennzoil let go a batch of engine oil without antioxidant. My engine oil turned to sludge. When I had my engine torn down and as I was busy removing this thick layer of baked on oil, it smelled like hot buttered pot corn in front of a movie house. I had my car back on the road before Pennzoil announced they were buying users new engines.
#18
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I really hope this is not the case, but I do not think I do anything too excessive. My oil always looks black when I change it and I agree it depends how it is driven.
I use 5W30 Royal Purple in the winter and 10W30 in the summer with K&N oil filter (I like the nut on the end so you can get it off easily).
I use 5W30 Royal Purple in the winter and 10W30 in the summer with K&N oil filter (I like the nut on the end so you can get it off easily).
#19
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I really hope this is not the case, but I do not think I do anything too excessive. My oil always looks black when I change it and I agree it depends how it is driven.
I use 5W30 Royal Purple in the winter and 10W30 in the summer with K&N oil filter (I like the nut on the end so you can get it off easily).
I use 5W30 Royal Purple in the winter and 10W30 in the summer with K&N oil filter (I like the nut on the end so you can get it off easily).
Royal purple was actually a good oil up untill 2 years ago, have you ever dissasembled an engne that had royal used? all the parts are coated with a film like substance.. some may thinks thats a good thing but that film turns to a sludge and is like an artery resrtictor.
i would imagine anything too excessive is not good.
#21
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If anything, changing your oil more frequently is better for the car. Less breakdown of chemical detergents and additives, removes a good deal of contaminants before they wash through the system multiple times. The oil you put in your car is generally made up of longer chain heavy hydrocarbons (standard motor oil), those bonds are weak forces, and high heat and wear tend to break them down. This break down process leads to the degradation of the wear and adhesion properties of the motor oil.
Unless you give me some chemical makeup of oil (whatever synthetic you are using) that has a proven cross reaction with another molecule in the oil to form a favorable lubrication end product, I will have to call B.S. on this one...
I am open to be proven wrong, but I would like to see a link or some hard evidence before I buy it. Also, real evidence doesn't count as someone on a forum saying, they heard it from some guy who is brothers with the guy who works on cars.
Last edited by buchnerj; Sep 23, 2010 at 10:02 AM.
#22
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2) As for waiting on oil changes sounds like a gamble-- if it was true, your oil breaking down would be a good thing not a bad thing--counter to what we are told today--when the oil breaks down it loses its ability to protect your motor, thats why you change it.
3) If it was good to have bearing bits floating around in your oil from wear as stated in an earlier post because it fills in cylinder was or adds to bearing life as a lube of some kind--then why wouldn't driving more on that same oil- used-well broken in oil -- be a benefit?
4)Its been proven in the Amzoil threads thru their test labs that oils have a limited life and impurities--- as in, ingredients not in oil-- are deterimental to oil life and its effectiveness.
5) Oil isn't going to save an abused engine, reseal cylinder walls or help a bad bearing.
6) Oil life is abouts it effectiveness to prevent wear , not enhance the properties of wear to be a beneift to your motor. Some oil company would have jumped all over this pitch in its ads if it were true--plain and simple.
Last edited by meckert; Sep 23, 2010 at 10:05 AM.
#23
Evolved Member
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I actually read something to this effect from some info from Mobile 1 that we got at the dealership. This was a year ago so no I dont have the info nor did I really read it all because at the time I didnt believe into that. It was mostly stating that there is one additive or chemical that when left a bit longer will protect better. It wasnt saying that leaving it forever was better, just that a bit longer than the usual 3k service intervals. I think they were saying 5-7k actually. The point they were making was that there is a point of diminishing returns, after those 5-7k the additive in question will breakdown so its just saying you can leave it in a Bit longer everytime and you will be better off as compared to more frequent changes. No I cant remeber exactly which additive it was btw, sorry.
#24
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you know when you start a car after an oil change and it sounds like a bag of marbles? thats a combination of the piston skirts beating on the cylinder walls and the main/rod bearings with no hydrodynamic wedge slamming the crank journals. slightly dirty oil is better for your motor than that.
#27
Evolved Member
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you know when you start a car after an oil change and it sounds like a bag of marbles? thats a combination of the piston skirts beating on the cylinder walls and the main/rod bearings with no hydrodynamic wedge slamming the crank journals. slightly dirty oil is better for your motor than that.
for the record every 2500 miles here mobil 1