Oil filter question, Genuine or OEM?

Jet-Fighter7700

Jet-Fighter7700

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So I want to ask the relevant boffins here, if there is a difference or its my imagination

Hyundai Getz 2010 1.4, oil filter I got was a GUD filter from Midas, White can, was installed right, tightened up properly (I hope)
but constantly leaked oil, see pics, coated the bottom of the car with oil, but I kept on topping up all the time, so it was okay I guess,

recently did a service, mechanic advised me to buy a genuine Hyundai Oil filter (blue)
so far so good, but that's my next question, is this one of those times where the dealership part is better than the OEM part from Midas/Autozone,

or do I have this backwards, and the guys working in auto parts can tell me the truth here,
 

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In my experience, which is only with Honda, the Genuine Honda filter has a nicer gasket than the GUD.

The edge of the filter is crimped over the gasket, the gasket is profiled in such a way that it has a higher contact pressure because it has a thinner point where it contacts the block, lastly, it’s almost impossible to overtighten as it crushes down and then the metal of the filter makes contact with the block so you can’t tighten any further.

I buy the genuine ones because they cost 20 bucks more than the GUD, so for me it’s worth it for the improved gasket design alone.
 
Compare the seal between the two filters.

Just pull them off the filter and check the outside diameters. It is possible that the one filter seal is slightly wider than the other. If the seal is crimped into the housing, leave that one and check the loose one. You could just measure it with a vernier or tape measure.

Put the seal onto the oil filter housing to check. You may have to wait for the new service to do this.

Never had an issue with Gud, but have seen incorrectly supplied filters not sealing correctly. The thread pitch may be the same, but the outside diameter of the sealing ring may be on the limit or too wide.

Steam clean the areas where the oil leaked - softens rubber parts, cv boots/hoses etc.
 
Last edited:
TheChamp said:
Those things never leak, OEM or aftermarket, it is actually the easiest part of the servicing, it was either a wrong filter or maybe the old gasket was left there and you installed the new one on top of it.
Click to expand...
This.

Just to add.
Very and I mean very rarely, the rubber gasket is not fitted correctly from factory ( OEM and aftermarket) or there is a small shard of the cardboard box across it.
I always just give it a quick inspection before fitting.

In the rare case that it does leak just take it off again and look for the cause, it's messy but you just fit it again once you've spotted the culprit.
 
Filters are the cheapest part of the service. Just go oem.
But you shouldn't have any issues with gud, framm or mann filters.
 
Had Mann filters untighten themselves over time on my car on two separate occasions. Correct size and replacement for OEM.
Never had issues with GUD before.

My local OEM dealer since +-2018 only stock tuna can sized filters for the current 0.9 and 1.2t petrol engines and claim that they use that filter on my car's engine as well back in the workshop.
Before all this from my local stealership, OEM was a lot cheaper than aftermarket.

TLDR = Buy OEM
 
difference between OEM like a gud and one marked with Hyundai is a concern though,
I always believed that buying parts from the dealer was legalized theft,
where the part itself is from GUD but put into a box marked Hyundai and charged 3 times the price for the exact same thing,

thats what I wanted to ask the guys working in auto spares @EL'Diablo
 
This is alot to read but did your mechanic:

Compare seal sizes pre install?
Lube the seal before tightening or just moer toe over tightened by mistake
 
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