Originally Posted By: Drew99GT
Originally Posted By: jldcol
A theory for you Drew, was this a hot/warm oil change? I tend to think the warm block/filter mating surface will contract a bit as it cools and shrink away from the filter. This bit of space may be enough to leak thru or cause filter to be less that tight enough. The current cold temps may exacerbate this effefct,or not.
That's a good theory! I always do oil changes when the engine is warm, so as it cools, and the gasket contracts, it becomes looser then when I tighten it.
Who knows; the seam could have failed as well. I looked at it for a while, but even cleaned off, there was still oil around the seam, so it was hard to tell if there was a crack or a leak.
I had the same thing happen late last year on my mom's Malibu. I always make sure I put them on tight, with oil on the gasket, but I do oil changes when the car is hot, so the expansion/contraction from the drastic changes in the weather may have had something to do with it. For what it's worth, the oil filter was a Napa ProSelect 1040. I've used them a few times on that car with no problems, but this one did start to leak after a couple of weeks. I just went under the car and re-tightened it and it was fine for the full 5k OCI.
Originally Posted By: jldcol
A theory for you Drew, was this a hot/warm oil change? I tend to think the warm block/filter mating surface will contract a bit as it cools and shrink away from the filter. This bit of space may be enough to leak thru or cause filter to be less that tight enough. The current cold temps may exacerbate this effefct,or not.
That's a good theory! I always do oil changes when the engine is warm, so as it cools, and the gasket contracts, it becomes looser then when I tighten it.
Who knows; the seam could have failed as well. I looked at it for a while, but even cleaned off, there was still oil around the seam, so it was hard to tell if there was a crack or a leak.
I had the same thing happen late last year on my mom's Malibu. I always make sure I put them on tight, with oil on the gasket, but I do oil changes when the car is hot, so the expansion/contraction from the drastic changes in the weather may have had something to do with it. For what it's worth, the oil filter was a Napa ProSelect 1040. I've used them a few times on that car with no problems, but this one did start to leak after a couple of weeks. I just went under the car and re-tightened it and it was fine for the full 5k OCI.
