1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Oil filters

Old 03-17-19, 04:50 PM
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Oil filters

I'm trying to see what filters most are running on their FBs with beehive cooler. I've been using bosch, but I get very different oil pressures with each change, perhaps some bad antidrain backs? I've read bad things about fram, but may chase down Mazda filters if they are available.

I use the same oil each time, but this change, it only fluctuates from 40 to 60ish from idle time 5-6k rpm, just yesterday before the change, it fluctuated between 20 to about 70-75. All guesses given the gauge doesn't have all the numbers.

Stays consistent throughout the change cycle.

Thanks
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Old 03-17-19, 05:30 PM
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OE filters cheap for what they protect. Same PN for rotaries 1970 the 1994 and maybe even RX8s. This is what I always have used.
$7 well spent.

Stu Aull
80GS
AZ
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Old 03-17-19, 06:36 PM
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Thanks Stu, I'll try and find a Mazda compatible filter next change. I use only Honda on my Honda's and Motorcraft on my truck, hopefully there's something Mazda makes today will fit.
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Old 03-18-19, 09:51 AM
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Originally Posted by Ckforker View Post
Motorcraft on my truck,
Then you bought the wrong truck... JK
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Old 03-18-19, 10:56 AM
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Originally Posted by Ckforker View Post
Thanks Stu, I'll try and find a Mazda compatible filter next change. I use only Honda on my Honda's and Motorcraft on my truck, hopefully there's something Mazda makes today will fit.
B6Y1-14-302A is the genuine part.

B6Y2-14-302-P1 is a USA sourced part.

Wix is a good alternative as well
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Old 03-18-19, 12:28 PM
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Perfect, thanks, I ordered 8 of them, that will last 4 years.

What, there's other makers of trucks? 😝
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Old 03-18-19, 01:46 PM
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I use the Mobil 1 or the K&N filters. They are rated really well. Wix is ok and stay away from FRAM or anything they make as private labels for others,
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Old 03-20-19, 10:04 PM
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I also normally use Mazda filters.I did order a Wix brand filter for my newest 10AE,but I won't have the oil in there too terribly long before I perform its second oil changed under my ownership.
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Old 03-24-19, 04:57 PM
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I use k&n fitlers I also used Bosch with no changes in oil preusssre heard a lot of horror story’s about the frams
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