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Results tagged with oil
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user 2760
This tag should be used for anything related to the use of automotive engine oil, or in reference to other parts of the car that also require lubrication using oil.
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Does a low oil level mean some synthetic has converted to sludge?
I then checked the oil level, and it was non-existent. I added two containers of oil, about ~2L (IIRC, engine capacity is ~6L total), and then the level was at the lowest allowable. … At that time, there was probably 10k miles after the prior oil change of about a year prior, which was done at the dealership, with obviously supposedly "fully" synthetic oil. …
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Are ester-based oils less or more likely to disappear from the engine? [duplicate]
Are ester-based oils (like Redline 5W40) less or more likely to disappear from the oil pan after going a certain number of miles (e.g. burn out together with gas into exhausts), compared to non-ester-based …
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very bad gas mileage in a brand new german car
I've had a number of oil changes at the dealerships, where they obviously supposed to use "fully" synthetic oil, and charge and itemise for the oil changes as such. Mileage has never improved. … with now nearly 20k miles after the last full oil change, with 4L of top-up oil, 2L of which is ester-based Redline. …
- 1,515
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Does one have to change ester-based fully synthetic oils?
They say that ester-based oils are used in jet-engines, where the oil is sealed, and it never has to be changed. … If I use an ester-based oil as the lubricant for my Jetta 2.5L petrol, such as the Redline 5W40 brand, would I have to change the oil at all? …
- 1,515
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burnt motor oil: do suspended particles burn off, too?
The purpose of the oil is to clean the engine, and suspend particles, where the smaller particles are suspended within the oil itself, and larger ones are filtered out by the oil filter, per my understanding … Or are they left behind to be suspended in the leftover oil? …
- 1,515
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Oil evaporates/burns-off (becomes thicker), should top-up be thinner?
I read somewhere that when the oil evaporates, the leftover oil is effectively thicker, e.g., to extrapolate, 5W40 may be closer to 5W50 after the evaporation takes place than before so. … I use Redline Oil 5W40 (fully-synthetic ester) in my 2008 Jetta SE 2.5L with 80k miles, which requires oil of type VW 502 00. …
- 1,515
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Is starting idle RPM always lower in colder temperatures?
I've noticed that my 2008 Jetta 2.5L 5W40 generally starts up with an idle RPM of at most 1.2K RPM around the freezing temperature (say when the temp sensor reads 33°F), or even at just about 1K RPM w …
- 1,515
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Is topping up the oil enough of an oil change?
Oil (or perhaps even 5x)), which basically means that there is almost no original oil left in the system. … It'll be 100% Red Line Synthetic Oil, of course. I'll probably buy an OEM oil filter from the dealer. …
- 1,515
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Does VW T40057 drain all 6 litres of oil in 2008 Jetta 2.5L?
However, it's not very clear whether or not this drains the whole 5 or 6 litres of oil from the oil pan, or whether it simply drains the oil only from the oil filter (e.g. just some 1 litre or so?) … , and you still need to drain the rest of the oil from the oil pan by unscrewing and replacing the oil drain plug (which is separate from the oil filter assembly). …
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