In line diesel filter

Siardi · **Posted:** Wed Sep 28, 2011 9:04 pm

Hello everyone !!!
Here we go, my first post.
I wanted to let everybody know that I have been lurking around for a couple of weeks reading up on all CRD related and have learned a lot. Thank you all for sharing your knowledge !!

I run a search on the forum but, as you already know, the search function can be very tricky to use succesfuly.

My question: I plan on using Biodiesel on my CRD and as you might know when you first start pouring the bio in the tank it will clean up all that the diesel has left behind in the tank and lines and end up clogging the fuel filter and will need replacement. I was wondering if an in line filter (cheapo from napa) can be added before the factory filter avoiding having to change a $40 filter. I don't know if the system can handle the added resistance in the line given that there's no fuel pump, I bought an inline filter at Napa and it does not seem to offer a great deal of resistance (it also might not be a good filter) when I blow air through it, but, I'm no expert, that's why I come here.
Thank you all for your responses!!!

I have had the CRD for about three weeks and I love it !!! Looking on ways to improve MPG's, so far have been getting 21,5 average and up to 22,6 mostly Hwy.

Willy.

ATXKJ · **Posted:** Wed Sep 28, 2011 9:33 pm

Howdy Willy - Welcome to LOST

The mini - prefilter has been done. You have to be really, really careful you don't create a leak - and I'm tempted to say the odds of that are pretty high until you have some kind of lift pump - now a cheapy Facet in the engine compartment in front of the filter would work wonders.

although I'd try without the pre-filter - just having a spare filter of two and change at the first sign of problems.

naturist · **Posted:** Wed Sep 28, 2011 9:42 pm

I would like to point out two things: #1, there is a reason the OEM filter is so huge; and #2, biodiesel will only clog the existing filter with crap if the engine has been run for a long time on REALLY crummy diesel fuel.

So, if you happen to have one that qualifies on the basis of #2, a small cheapo inline filter will likely clog up within the first 30 feet or 30 seconds, depending upon which comes first. IMHO, the addition of an inline filter is a waste of time, money, and effort. If you are worried about it, plan to change the OEM filter in-flight by carrying a spare one along with you.

Sir Sam · **Posted:** Wed Sep 28, 2011 9:43 pm

I think we don't have as many problems when we first run bio as other vehicles in the past. Keep in mind your vehicle is only about 5 years old, has probably had pretty clean fuel in it, and also has probably had a little bit of bio in the past.

Best thing I can say would be to just fill it and run it, then in the future worry about the filter.

onthehunt · **Posted:** Wed Sep 28, 2011 10:15 pm

Quote:

and #2, biodiesel will only clog the existing filter with crap if the engine has been run for a long time on REALLY crummy diesel fuel.

Very untrue. All US diesel is crummy. I suggest you leave the fuel system alone and keep a spare filter on hand. It will clean out with time.

papaindigo · **Posted:** Thu Sep 29, 2011 9:59 am

stoutdog has off and on run bio all the way up to B100 in his 2006 without filter problems that I know of. In any case I'd be reluctant to mess with additional filters in the fuel system. Run a couple of tanks of bio and slap in a new filter if you feel the need. By the way no need to spend $40 on a filter. WIX 33647 or the NAPA fleet filter equivalent can be had for $19-25.

stoutdog · **Posted:** Thu Sep 29, 2011 10:33 am

papaindigo wrote:

stoutdog has off and on run bio all the way up to B100 in his 2006 without filter problems that I know of. In any case I'd be reluctant to mess with additional filters in the fuel system. Run a couple of tanks of bio and slap in a new filter if you feel the need. By the way no need to spend $40 on a filter. WIX 33647 or the NAPA fleet filter equivalent can be had for $19-25.

Yes, I have had no filter problems, but I'd also point out that I started running biodiesel when the Jeep was only at about 28k miles... time for some crud to build up in the tank, but not a lot. Plus, I changed the filter out at ~30k, just to be safe.

If you have a lot more miles on your Jeep, you'll be able to run the biodiesel but I imagine you are also far more likely to clog up your filter early on. Easy enough fix with the WIX replacement, though.

To the OP, running biodiesel is not a way to improve mpg. If you run B100, expected to lose about 10%. If you run B20, you won't see much change. However, biodiesel does burn much cleaner, uses no fossil fuels, lubricates the engine, and in some places costs enough less than regular diesel to offset the mpg hit (if the first three factors aren't enough to get you to shell over a couple more dollars each fill up).

Ajamant · **Posted:** Thu Sep 29, 2011 10:54 am

I'm original owner and have ran b5-b20 it's entire life (at 102,000) I'm lucky to have a gas station that sells it 2 miles from my house.

In line filter is a waste of money, time. The existing filters cost 20$ and r easy to replace. I'd suggest running b5 and working your way up. Change the filter after 3-5 tanks and then Make sure u replace at 25k after that. If u experience power loss under heavy acceleration or freeway speeds, change filter ASAP.

Keep one with you and a few wrenches and good to go.

Also, I am a firm believer that biodeisel is FANTASTIC for our engines and fuel system. It is an incredible cleaner and lubricant. However make sure u r getting quality fuel. My brothers and I use b100 to clean parts all the time, works fantastic and easy on the hands

)

Siardi · **Posted:** Thu Sep 29, 2011 7:05 pm

Thank you all for the great replies !!!

It's settle then, no additional chepo filter.
By the way, mine has about 74K miles on it and the prior owner (who had it for about 14k miles) told me he used bio at the beginning and changed the fuel filter (before noticing anything), but then stopped using the bio.

A couple of things that were brought up:

-I do already have a filter under the back seat and tools to change it on the fly if necessary.

-Thank you for the info on the WIX filter replacement, I bought mine at napa and it was 38 something plus tax (it's not the one suggested on this thread).

-I know biodiesel it's not going to help improve MPG's, I still like to get as much as possible weather running any blend of bio or #2 diesel from the pump; that's why I'm thinking of the ECO tune.

Thank you all !!!
Willy.

warp2diesel · **Posted:** Thu Sep 29, 2011 8:12 pm

If you are making your own Biodiesel, consider a centrifuge to polish it before you put it into your storage tank. PA Biodiesel Supply and other places sell systems to do it. Another advantage of the centrifuge is that it acts like an insurance policy if something screws up in your decanting process. Decanting process by products can trash out your CP3 pump in a heart beat, if it does not clog your filter first.

mikey1273 · **Posted:** Thu Sep 29, 2011 8:27 pm

I run Bio when I can get it. when I started I went right to filling half b100 half #2 diesel in late October and November. I kept a filter around but never needed it. I changed mine the other week after almost 25,000 miles I dumped it out and saw no dirt and the filter looked clean inside as best I could tell.

Bio is not good for fuel economy but it is good for the environment and if you can get it cheaper than petroleum its worth it for all the good it does.

Ajamant · **Posted:** Thu Sep 29, 2011 11:15 pm

A centrifuge is a costly investment, and while yes it can be used to "polish" the fuel it's more effective for your initial filtering of used oil. If u start with crap stock then it's much harder to get quality fuel. Filter good first, good results later.

papaindigo · **Posted:** Fri Sep 30, 2011 10:00 am

That WIX filter - $26.44 Amazon with free shipping; $19.49 Fleet Filter; $31 O'Reillys

In line diesel filter

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