engine oil bibble, oil, oil , oil.... Options

[lubu]

found an interesting link about engine oil http://www.carbibles.com/engineoil_bible.html after reading it i think im gonna change my oil tomorrow...and try that Neodymium magnetoil traps

edit: actually www.carbibbles.com has pretty good infos on engines and stuffs too...

This post has been edited by lubu: Jun 1, 2007 - 12:14 PM

[lagos]

it was a good read, until they mentioned Amsoil. lol.

[6strngs]

Larger filters on standard cars?
There's a school of thought which says that enlarging the oil filter on your car is A Good Thing. Why is this?
The small oil filters fitted to engines these days run with quite a high back pressure, and the bypass valve trips at about 3500rpm. That means that your oil is not being filtered when the engine is spinning faster than 3500rpm.

does this mean that if I'm cruising down the freeway in 5th gear at 80 mph (4,000 RPMs) that my oil is not being filtered?

[Hanyo]

Larger filters on standard cars?
There's a school of thought which says that enlarging the oil filter on your car is A Good Thing. Why is this?
The small oil filters fitted to engines these days run with quite a high back pressure, and the bypass valve trips at about 3500rpm. That means that your oil is not being filtered when the engine is spinning faster than 3500rpm.

does this mean that if I'm cruising down the freeway in 5th gear at 80 mph (4,000 RPMs) that my oil is not being filtered?

he said : school of thought


so its not 100% accurate.

1) oil filters are design for the car.
2) oil pumps vary and create different oil pressure at different rates
3) bypass does not mean no oil to the engine, it just means join goes through the filter without being filered.

makes you want to buy a higher quality filter huh?

[6strngs]

Larger filters on standard cars?
There's a school of thought which says that enlarging the oil filter on your car is A Good Thing. Why is this?
The small oil filters fitted to engines these days run with quite a high back pressure, and the bypass valve trips at about 3500rpm. That means that your oil is not being filtered when the engine is spinning faster than 3500rpm.

does this mean that if I'm cruising down the freeway in 5th gear at 80 mph (4,000 RPMs) that my oil is not being filtered?

he said : school of thought


so its not 100% accurate.

1) oil filters are design for the car.
2) oil pumps vary and create different oil pressure at different rates
3) bypass does not mean no oil to the engine, it just means join goes through the filter without being filered.

makes you want to buy a higher quality filter huh?

The whole section is really about using a larger filter than what came stock, but he mentions the bypass. It just seems to me that if I were cruising at 4K rpms for an extended period of time, the oil would be going through the engine multiple times without being filtered. This just seems very bad to me! anyway the section goes on to say:

If you increase the size of the filter, this will raise the rpm at which the bypass valve will switch. With a bigger filter and lower back pressure, for the same rpm (prior to bypass valve operation) less engine power will be lost in the filter. Bigger filter means better filtering and more power at low to mid revs. Clever eh? But there's some things you need to be aware of if you're going to try this approach, all of which are relevant, and none of which I can confirm or deny

Bigger filter = more "dead" space = more oil. Remember you'd need to add more oil to the engine to keep the oil level at the correct mark on the dipstick. This isn't necessarily a bad thing - more oil doing the same job theoretically means less stress on the oil.

Oil may take a little longer to circulate around the engine after startup, as the pump may have to fill up the larger capacity oil filter. With modern filters this ought not to be a problem though because all but the cheapest filters have backflow preventers which keep oil in the filter when the engine is off.

Availability of filters and fouling. If you put a larger filter on it might foul something else in the engine bay. That is if you can find a larger filter to start with. The rule of thumb is to go to a motor factors shop, and find the oil filter that was designed for your engine .Then look through the myriad of larger oil filter boxes for a bigger filter that has the same screw thread and sealing ring diameter. Nowadays most spin-on filters have a 20mm screw thread so that's not going to be the hard part. Finding the same sealing ring diameter is the thing to be careful of. And don't ask the people at the parts counter. Because of liability issues, they're unlikely to sell you anything other than exact filter for your make and model of vehicle.

I always try to use a toyota filter whenever possible, but reading this makes me want to switch to 3sgte filters.