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I can NOT stand the tea cup filters that are on many cars. Wife's Hyundai 2.4 has one about same size as my Subie. I found an older Amsoil in the cabinet that fits well, all surfaces mated, threads were the same and just did fit in the recess. I've put around 100 miles on it with no problems.
The nice guys at my local Advance Auto Parts store worked with me a lonnng time tonight (slow night being Halloween) trying to find something that would mate and match but taller. NO joy. The Amsoil ASF 20 is abt 35% larger in capacity so am happy with that but only have one more of those and none listed on Ebay. I do not know the current crossover # as AMSOIL has changed their numbering system. That will be my next quest I'm guessing.
B/C the same filter has been used on the 2.5 for many years, has anyone found a larger, quality oil filter?
What about going to a remote oil filter? Then you can use a much larger filter and be able to change the filter from under the hood? I am sure there are remote oil filter kits to fit your vehicle.
AS long as you understand that the larger filter will take longer to pressurize the system and there will be more dry startup damage. But just because it fits doesn't mean it's made the same. It may have a by-pass valve that's supposed to be in the filter and the larger one doesn't. Or it could be the opposite and flow is being restricted causing an oil starvation condition that's going to show up when it's too late. The oil filters are not required to do the work of the older engines. We have a lot cleaner burning gas now and engines designed to burn cleaner. The deposits and crap aren't made in the engine like the old ones.The oils are a lot stronger these days and far better than they were just 10 years ago. The big oil filters are just not needed anymore.
I' be careful...the car was engineered with that filter
Agreed. The cars oil system was designed with a specific pressure drop through the filter in mind. Swapping to a larger filter with more filter area may reduce the pressure drop through the filter and may result in a lower engine oil pressure overall. Whether or not this pressure drop is acceptable to maintain proper engine operating paramerters would require a bit of testing as well as a more detailed look into the design of the oiling system of that particular engine.
Considering this is a new '15 model car, I'd take it you'd want to preserve your warranty and if anything were to happen to the engine, the dealer could make a case that the larger oil filter was the cause...and the most certainly have a technical reason to state this.
Without in-depth testing and researching this, I'd be hesitant (as an Mech. engineer who works in filtration design) to suggest swapping to a non-OEM spec'd filter. Engines have tighter specs these days, don't shed metal and other debris into the oil and overall are a lot more refined than engines from the 60's and 70's that required a garbage-pail sized oil filter to handle all the metal particulates shedding from the engine as it ran. Part of the tightening of tolerances is why car engines can easily go past 100-150K miles these days. A large oil filter on a modern engine just simply isn't needed these days.
Your concern with swapping to a larger filter is frankly unneccessary and based in part on out-dated principles.
Last edited by BostonMike7; 10-31-2014 at 11:43 AM..
Leave the stock filter on the car. After you get your degree in automotive engineering and have 10 years experience in the field, then you can consider making changes.
The engine will last longer than you will own the vehicle with the stock filter. Leave well enough alone..
If you wish to experiment, do it with your floor mats or seat covers, some place you can screw up a good thing.
I'm a mechanic with 40 years experience and would never consider such a thing. You will gain absolutely nothing but could do harm. The vehicle as designed will outlast you..
I can NOT stand the tea cup filters that are on many cars. Wife's Hyundai 2.4 has one about same size as my Subie. I found an older Amsoil in the cabinet that fits well, all surfaces mated, threads were the same and just did fit in the recess. I've put around 100 miles on it with no problems.
The nice guys at my local Advance Auto Parts store worked with me a lonnng time tonight (slow night being Halloween) trying to find something that would mate and match but taller. NO joy. The Amsoil ASF 20 is abt 35% larger in capacity so am happy with that but only have one more of those and none listed on Ebay. I do not know the current crossover # as AMSOIL has changed their numbering system. That will be my next quest I'm guessing.
B/C the same filter has been used on the 2.5 for many years, has anyone found a larger, quality oil filter?
TIA Tom
Why does the size of the filter bother you? Do you believe that somehow a larger filter is going to make some significant difference in how the engine runs?
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