timjet
Guru
- Joined
- Apr 9, 2009
- Messages
- 1,920
I've always used Cummins Fleetguard oil filters on my Cummins 6BT's but they are expensive and not commonly found. I was thinking of using a comparable NAPA filter.
Comments?
Comments?
No problem using Wix/Napa on a b-motor. You can cross part numbers on the Wix website. Most oil filters sold by Napa are made by Wix, and I consider them good quality.
I stick with OEM for C-series as they have a novel venturi-forced bypass filter inside the big can. No such thing on the B.
Hmmm, that's interesting to know. Been using Wix on my Cummins 6CT 300 HP for 12+ years now. But then I change filter and oil much more frequently because I run it 300 off the max 90% or the time.
Ted
Nothing wrong with running a Wix on a C, it's just my preference to use OEM. Lots of c's run Wix and never heard of an issue. My local Cummins dealer gives me decent prices, too.
What interval do you change your oil on the 300? I run my 450 at about 200-250hp at cruise and an oil sample at 200hrs still looks good. I normally go 300hrs.
Ted- Take an oil sample at next change at 50hrs. Costs 15 bucks from cat. Oil might not be as bad as you think.
Also- is engine blackstacking at all? If wet exhaust you can tell by spill water being grey. On mine at 1900 it is grey, at 2000 it cleans up. If it is blackstacking, oil will pick up soot much faster. Sometimes a small change in rpm gets it to clean up.
I was thinking of using a comparable NAPA filter.
Comments?
Blackstacking is just another term for diesel black smoke. Sometimes you can see it in your wake, sometimes it just darkens the water spilling out the tailpipe. Some engines black smoke almost constantly at cruise like the high hp 3208's. The C is usually pretty clean, but can do it based on which engine and boat load and power setting.
Ted- Take an oil sample at next change at 50hrs. Costs 15 bucks from cat. Oil might not be as bad as you think.
There was a significant thread about this, it included a video of someone dissecting a number of branded filters and grading them on his view of their qualities. Finding it might help.
If you don't have Cats, use Blackstone labs; they understand all the engines and specs. I like to take a sample at every oil change, a great and cheap way of tracking aging and fending off some catastrophes. A one-off sample doesn't really tell you much unless something Really Bad has already happened.
Blackstone Labs