For this reason is generally a really good idea to use the proper OEM specified multi-grade oil when using conventional motor oils in colder climates.
Generally, the valve uses a spring loaded design where oil pressure pushes the valve open as pressure builds up from a clogged filter. When a by-pass valve opens it circulates "dirty" oil directly back into the engine to ensure proper lubrication at all times. Usually, the valve is coated in some form of gasket material to prevent mobil oil filter leakage.
The spring is usually either of a leaf or traditional design, and usually sits at the top of the can. Being placed at the top of the can causes the spring to push the filter snugly into the gasket at the base.
What are the considerations when looking for an oversized filter? First, it's got to fit the physical space restrictions on the Prelude. This means that it's got to fit behind the engine, have enough clearance between the firewall and the engine, fit the oil filter mounting base plate, and have the same inlet threading (20mm x 1.5mm). Second, the by-pass valve needs to have the relatively same stiffness as the OEM by-pass specification. The reason for this is fairly simple: Too weak a spring will cause the filter to by-pass all the time, and to strong a spring may cause the filter to restrict oil flow and lower oil pressure. The OEM specification is 9-11PSI.
Many dealers attempt to get you change the oil in your car every 3000 miles.
If you use Redline, Mobil 1, AMSOIL, Royal Purple, or Valvoline synthetic motor oils you can easily run your oil in your engine without any problems for the conditioner recommended change interval of 7500 miles. The only time you have to consider changing your motor oil at shorter intervals is if your car is not a daily driver, and will not warm up to full operating temperature for at least 30 minutes a day. The reason for this is that small amounts of moisture in the air tend to soak slowly into your motor oil.
Warming up the engine causes the moisture to leave the motor oil. If you are changing your oil every 3000 miles (because you drive the car once a week) or at a specific time intervals (every 4-6 months because you aren't putting 3000 miles on the oil), then it's not as import to use synthetic motor oil. Some people will disagree with the above, but the fact is that just about every brand name non-synthetic oil (or "dino") will last 3000 miles and have almost no significant wear to the oil or engine. It is not cost effective to use synthetic oil if you car sits for long intervals with low mileage.
Engine Oil triphammer Testing: There is only one way to actually prove how well your oil and oil filter are actually working: Send your oil out to a laboratory and have them tell you what is actually in the oil.
I'm still using it, but just changing the oil every 7500 miles with either a Mobil 1, AMSOIL, or Fram x2 filter.
It's probably cheaper to fix the gasket then drive the car until the anti-freeze starts leaking seriously and causes the bearings to fail, etc. The Mobil 1 oil filter is well constructed and a decent filter.
Generally, the valve uses a spring loaded design where oil pressure pushes the valve open as pressure builds up from a clogged filter. When a by-pass valve opens it circulates "dirty" oil directly back into the engine to ensure proper lubrication at all times. Usually, the valve is coated in some form of gasket material to prevent mobil oil filter leakage.
The spring is usually either of a leaf or traditional design, and usually sits at the top of the can. Being placed at the top of the can causes the spring to push the filter snugly into the gasket at the base.
What are the considerations when looking for an oversized filter? First, it's got to fit the physical space restrictions on the Prelude. This means that it's got to fit behind the engine, have enough clearance between the firewall and the engine, fit the oil filter mounting base plate, and have the same inlet threading (20mm x 1.5mm). Second, the by-pass valve needs to have the relatively same stiffness as the OEM by-pass specification. The reason for this is fairly simple: Too weak a spring will cause the filter to by-pass all the time, and to strong a spring may cause the filter to restrict oil flow and lower oil pressure. The OEM specification is 9-11PSI.
Many dealers attempt to get you change the oil in your car every 3000 miles.
If you use Redline, Mobil 1, AMSOIL, Royal Purple, or Valvoline synthetic motor oils you can easily run your oil in your engine without any problems for the conditioner recommended change interval of 7500 miles. The only time you have to consider changing your motor oil at shorter intervals is if your car is not a daily driver, and will not warm up to full operating temperature for at least 30 minutes a day. The reason for this is that small amounts of moisture in the air tend to soak slowly into your motor oil.
Warming up the engine causes the moisture to leave the motor oil. If you are changing your oil every 3000 miles (because you drive the car once a week) or at a specific time intervals (every 4-6 months because you aren't putting 3000 miles on the oil), then it's not as import to use synthetic motor oil. Some people will disagree with the above, but the fact is that just about every brand name non-synthetic oil (or "dino") will last 3000 miles and have almost no significant wear to the oil or engine. It is not cost effective to use synthetic oil if you car sits for long intervals with low mileage.
Engine Oil triphammer Testing: There is only one way to actually prove how well your oil and oil filter are actually working: Send your oil out to a laboratory and have them tell you what is actually in the oil.
I'm still using it, but just changing the oil every 7500 miles with either a Mobil 1, AMSOIL, or Fram x2 filter.
It's probably cheaper to fix the gasket then drive the car until the anti-freeze starts leaking seriously and causes the bearings to fail, etc. The Mobil 1 oil filter is well constructed and a decent filter.
