Thanks for straightening me out! I will always use the 1806 from now on. The cool part is that it fits on my Fords too.
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| Whats best?Napa 1515 or 1806 oil filter https://www.slantsix.org/forum/viewtopic.php?t=33041 |
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| Author: | madmax/6 [ Mon Dec 29, 2008 6:45 pm ] |
| Post subject: | Whats best?Napa 1515 or 1806 oil filter |
Read a whole lot of posts,and cant figure out which is better or why.DAN,please enlighten us,Thanks,Mark |
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| Author: | Reed [ Mon Dec 29, 2008 8:10 pm ] |
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1806 has the built in check valve, right? And the 1515 doesn't? I would think that 1515 is better on motors with tall standpipes and 1806 is better on motors with no or very short standpipes. |
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| Author: | SlantSixDan [ Mon Dec 29, 2008 9:18 pm ] |
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Both the 1806 and the 1515 have anti-drainback valves. The 1806 has a built-in standpipe. It works well with the factory standpipe, even the original tall one (that's the combo I have in my '71 right now) but probably the best overall result is with the shorty non-standpipe filter fitting threaded into the pump, because the shorty fitting seems likely to have less flow restriction than the standpipe fitting. Using the board's search function with the keyword 1806, I (you) get to see threads like this one, this one, this one, this one, and this one, which together contain just about every shred of information I (you) could possibly need to understand why the 1806 might be an especially good pick for my (your) slant-6 engine. |
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| Author: | Aggressive Ted [ Tue Dec 30, 2008 10:49 am ] |
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Mark, I have used both filters with 0-30W Mobil 1. My engine is just two years old and has 42,000 on it. With the 1515 on start up on cold mornings you can hear the difference. The engine will make some engine noise for a second or two until the pressure hits 50 lbs. on the gauge. With the 1806 there is no noise and I get an immediate 50 lbs. So those first few revolutions there is more oil pressure quicker and no engine noise from reduced oil pressure. Since I built the engine at half the factory tolerances, Dan suggested I try the 0-30W Mobil 1 and recommended the 1806. I must say it is a pretty sweet combination. It wasn't that long ago when the "Mighty" brand filter collapsed and starved the engine of oil. I can still here the squeak from the front two rods and the later clanking as I drove it home after installing a new filter. You might say I am paranoid, but I don't like to hear any strange engine noises especially on start up and the 1806 with the 0-30 is a pretty good test! |
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| Author: | Reed [ Tue Dec 30, 2008 10:52 am ] |
| Post subject: | |
Thanks for straightening me out! I will always use the 1806 from now on. The cool part is that it fits on my Fords too.
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| Author: | Aggressive Ted [ Tue Dec 30, 2008 10:59 am ] |
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Reed, Quote: 1806 = 1515 with built-in standpipe for instant oil pressure in applications (like the slant-6) with base-down filter installations. - SL6 Dan
The SL6 1806 has an advantage because it is mounted upright and upside down. On engines like a 440 that are horizontal (use the 1515), it makes no difference be cause the internal stand pipe only works when the filter is mounted like the SL6.So on your Fords and big block Chrysler's, etc. the 1806 provides no advantage. |
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| Author: | Reed [ Tue Dec 30, 2008 11:29 am ] |
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Hmmm. Myt Ford smallblocks have the filter pointed down at a 30-45 degree angle. Maybe it will help, maybe not. i will still use them just so I only have to remember one part number! |
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| Author: | Eric W [ Tue Dec 30, 2008 11:51 am ] |
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So, what would the CarQuest number be? Does Purolator make a simular filter? |
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| Author: | Aggressive Ted [ Tue Dec 30, 2008 12:06 pm ] |
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Our CarQuest closed, but I know they had their name on the WIX filters, but I don't remember the number....... :shrug: Purolator isn't the same..... |
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| Author: | SlantSixDan [ Tue Dec 30, 2008 1:07 pm ] |
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Purolator number for the oil filter with the built-in standpipe is L30137. |
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| Author: | THOR [ Tue Dec 30, 2008 1:44 pm ] |
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Wasnt there another oil filter like the NAPA 1068 that you could use? I just replaced mine at Ceejs yesterday and I am pretty sure thats what the number was. I will go out here in a second and investigate.... have to change the jet and boost it up a bit, get rid of that lean surge.  ~THOR~ |
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| Author: | SlantSixDan [ Tue Dec 30, 2008 2:01 pm ] |
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Quote: Wasnt there another oil filter like the NAPA 1068 that you could use?
Yes, but that's a shorter filter with a smaller filter element.
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| Author: | THOR [ Tue Dec 30, 2008 2:08 pm ] |
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That must mean the 1806 is huge, because the 1068 I have on there is fairly good size... well, I know which filter I am buying next time! ~THOR~ |
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| Author: | SlantSixDan [ Tue Dec 30, 2008 3:52 pm ] |
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1515 (no standpipe) or 1806 (w/standpipe): Regular-height (about 5½" tall) filter 1068 (no standpipe): Shorty (3¾" tall) filter 1773 (no standpipe): Unnecessarily tall (7" tall) filter There's one even shorter than the #1068 but I can't remember the number and can't imagine wanting to use it. |
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| Author: | steponmebbbboom [ Tue Dec 30, 2008 4:03 pm ] |
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ya ive seen that filter too and used one just today on a big nissan TB42 engine but can't recall the number. it was a short clearance filter, thats the only reason i would use one. i normally use the casite cf1a filter on that engine, SMH house brand filter that crosses to the 1515 wix. |
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