| Car makers worry about their reputation. Well at least | | | | wall surfaces once they reach the engine. The filter |
| some of them do. But they also care about beating | | | | absorbs and filtrates against abrasion and premature |
| the competition by advertising for low maintenance | | | | wear to the engine. |
| cost. Those car manufacturers calculate the estimated | | | | Over time, the filter accumulates dirt that has been |
| annual maintenance cost based on changing the oil filer | | | | trapped, until it reaches a point where it is possible for |
| every other oil change, or 6000 to 15000 miles. This | | | | oil passage to be obstructed. The filter should be |
| ultimately reduces the cost of the vehicle maintenance. | | | | changed before it reaches a point where it's an |
| On the other hand, oil filter manufacturers suggest that | | | | obstruction to the flow of oil, or even facing the danger |
| the filter is to be changed every oil change. Now, | | | | of becoming plugged. The good and bad news in one, |
| which word should you take for granted, neither. | | | | is that filters are designed to prevent from |
| I wanted to get a third opinion, so I interviewed many | | | | catastrophic failures due to improper lubrication, |
| mechanics, and almost all agreed on the fact that the | | | | therefore it has a bypass valve, which will allow the oil |
| the every other oil change is a false economy. All | | | | to pass through with the dirt once it reaches the |
| mechanics highly recommended changing the oil filter | | | | filtration capacity, preventing from loss of lubrication |
| every oil change. This was back up by their | | | | and allowing the dirt to enter the engine, and cause |
| experience, and science.today’s engines use a | | | | accelerated wear. |
| filtration process called "full-flow”. With this | | | | In conclusion, oil filters cost less than ten dollars, so you |
| technology, all the oil that's goes from the reservoir to | | | | may just as well change it with every oil change |
| the engine passes through the filter first. This means | | | | because the worst case scenario would be that you |
| that the primary defense line to the engine's | | | | lost a 100 dollars over the life of your life. On other |
| crankshaft, and cam bearings is the oil filter. It's purpose | | | | hand, the worst case scenario for not changing it on |
| is removing unwanted solid entrants to the system, | | | | time is a new engine which would cost you no less |
| such as dirt, carbon, and metal particles. These | | | | than 1200 dollars. |
| entrants can damage the bearing, journal and cylinder | | | | |