Switched to Oversize Oil Filter
#1
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Switched to Oversize Oil Filter
I recently added a larger oil filter to the Miata.
Old filter: Purolator PL14612
Specifications:
Anti-Drain Back Valve Yes Height 2.93
O.D. 2.69 Relief Valve P.S.I. 14-18
Threads M20-1.5 Type of Filter Spin-on
Oversize Filter: Purolator PL14610
Specifications:
Anti-Drain Back Valve Yes Height 3.52
O.D. 2.69 Relief Valve P.S.I. 14-18
Threads M20-1.5 Type of Filter Spin-on
All the specs are the same, except for an extra .6" of length for more filter element. It fit on my 1.6L with plenty of room left. I don't have an OEM oil/water cooler, though I think there's enough for those who have one. The PL14610 is out of the Mazda V6 from the Millenia, IIRC.
My oil pressure goes straight to 60PSI cold idle, whereas it used to be about 45-50 PSI cold idle.
Old filter: Purolator PL14612
Specifications:
Anti-Drain Back Valve Yes Height 2.93
O.D. 2.69 Relief Valve P.S.I. 14-18
Threads M20-1.5 Type of Filter Spin-on
Oversize Filter: Purolator PL14610
Specifications:
Anti-Drain Back Valve Yes Height 3.52
O.D. 2.69 Relief Valve P.S.I. 14-18
Threads M20-1.5 Type of Filter Spin-on
All the specs are the same, except for an extra .6" of length for more filter element. It fit on my 1.6L with plenty of room left. I don't have an OEM oil/water cooler, though I think there's enough for those who have one. The PL14610 is out of the Mazda V6 from the Millenia, IIRC.
My oil pressure goes straight to 60PSI cold idle, whereas it used to be about 45-50 PSI cold idle.
#5
It probably doesn't do much in terms of changing oil pressure, but the filtering capacity will definitely be increased. More filtering element.
What kinds of temp and oil pressure increase did you see? I would think a larger filter would do the opposite of what you describe. Less pressure(minutely) and lower temps because of the increased oil capacity. Though this is just my assumption, which may or may not agree with actual measurments and data.
Does replacing the oil filter with the smaller one cure the problem? That's the first thing I would try to pinpoint it to the filter. Just to be positively sure.
Nissans and Mazda use the same threads for their oil filters. I'm sure there are other manufacturers that use the same, but for sure Toyota is different.
What kinds of temp and oil pressure increase did you see? I would think a larger filter would do the opposite of what you describe. Less pressure(minutely) and lower temps because of the increased oil capacity. Though this is just my assumption, which may or may not agree with actual measurments and data.
Does replacing the oil filter with the smaller one cure the problem? That's the first thing I would try to pinpoint it to the filter. Just to be positively sure.
Nissans and Mazda use the same threads for their oil filters. I'm sure there are other manufacturers that use the same, but for sure Toyota is different.
#8
This guy did a comparison and found that the Advance Auto Parts $3 filter P/N AA7317 is the same filter for a little bit less cash:
Miata Oil Filters
Miata Oil Filters
#10
Hey mark!
I see you got a Z24, yeah? I just so happen to have a intake mani made by Venom for it. It was a display item at the shop I used to work at.
Not sure if I'm qualified to sell crap on here yet, but if you are interested, let me know.
Topic: Yeah, one of the garages I worked for only stocks the larger filter and not the smaller one. I think the smaller PL14612 cost more than the larger PL1460 also.
I see you got a Z24, yeah? I just so happen to have a intake mani made by Venom for it. It was a display item at the shop I used to work at.
Not sure if I'm qualified to sell crap on here yet, but if you are interested, let me know.
Topic: Yeah, one of the garages I worked for only stocks the larger filter and not the smaller one. I think the smaller PL14612 cost more than the larger PL1460 also.
#11
Boost Pope
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Yup. I use the same filter, largely because I had one left over after I sold my Integra. In the Mobil1 catalog, it's M1-104. A tad larger in both diameter and height, but fits perfectly and has the same pressure relief and drainback valve.
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