Quote:
Originally Posted by yspert
i've seen plenty of engines with sludge and they all have one thing
in common. lack of oil changes.
i've seen plenty of engines without sludge and they all have one thing
in common. a lot of oil changes.
i use syn in my tundra and i've got 12,000 miles on it and i've changed the
oil five times.
since you would probably never put used oil in your engine, if you changed
it today, when would you conceder the oil used?
ever heard of someone damaging their engine from changing the oil too much?
the reason for changing oil is to get the crap that gets into the oil out of
the engine.
sludge is a technical term for "build up of crap".
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No, sludge is a term used to describe the oil when it's viscosity breaks down after thousands of heat cycles. Synthetic has the ability to heat cycle roughly twice as many times as conventional oil and therefore can be ran longer than conventional motor oil. If you have 'crap' building up in your engine then you need a better oil filter because it's job is to filter out all the contaminates that are suspended within the oil. The oils job is to lubricate all of the parts of the motor that are metal on metal. Over time and after many many heat cycles the oil will start losing it's ability to lubricate these parts and friction begins to occur. The result is added heat which also speeds up the process of the oil turning to sludge.
Bottom line is if you're oil is still good then it's still good. Sure you can change your oil weekly if you like but you would be stupid and throwing money out the window. I have managed to get hundreds of thousands of miles out of numerous vehicles doing it my way and have yet to have an engine fail because I didn't change the oil often enough.