So this is something I am definitely going to do with the superduty, especially give the $110 oil changes now. :eek:

The bypass filters, synthetic oils, and no oil changes until needed(using oil analysis) are popular with the diesels that run high mileage. But with the skyrocketing price of oil, and the PITA that it is to store and recycle oil I am thinking it might be just as valid to do this on the wife's Grand Cherokee.

Blackstone is great for getting oil analysis. I am looking at different high quality synthetic oils like Amsoil and Schaeffer. The thing I need is a good bypass oil setup for the Grand that runs readily available sub micron filters. Would be nice if I could find a setup that would run the same filter on the truck AND the Grand. Anyone got any ideas on the bypass filter?

Any thoughts on this? Not having to change my oil ever 3k-5k would be really nice, and it would be great to not run oil pumped out of the ground in countries that hate us(yeah even those damn canucks :flipoff2:).

Change your oil every 3000 miles! Heck, I change mine once a year with conventional.
________
Magic (http://www.girlcamfriend.com/cam/Magic/)

You know my opinion :D Replied to your PM... Lets see what we can do!
Scott

at work (mercedes benz) we reccomend oil 10-13k with mobil1. i know everytone has seen the mobil1 commercial's. but i still change mile every 3-5k with conventional. thats just me tho.

Hell, my 91 camry beater has 180k, and the manual says 7500 miles in the owners manual. that 3000 mile stuff is ancient,and outdated. todays oils(yes even conventional) I used to work with a guy that was in the oil business-sales,and has been to the leading manufacturers facilites and training. I go at least 5-7k on syn,then swap filters.

AMSOIL makes some universal kits, I have seen them on a jeep before, filters mounted to firewall.

I use a Franz bypass oil filter which uses a 50 cent roll of toilet paper as an element. Along with that I plugged the factory full flow bypass(SB 350) and use a Fram HP4 filter for 100% filtering. The Franz element is so easy to change with no mess at all. Check out http://www.wefilterit.com/

Order everything I need for the Grand from Scott. Should be here next week. I'll post up pics and stuff once I put it all in.

Gonna wait till my next oil change to do the superduty.

at work (mercedes benz) we reccomend oil 10-13k with mobil1. i know everytone has seen the mobil1 commercial's. but i still change mile every 3-5k with conventional. thats just me tho.

So are the 272/275's burning as much oil as the 112/113's were on that 10K FSS? :laughing: Did they ever get the oil rings to seal against the walls properly? I left MBUSA two years ago, but when I was there I was one of 2 guys that inspected every warranty engine.

All of Wal-Mart's supply trucks are going to some new Donaldson filter that contains an additive that breaks down as the oil loses its original additive package. Supposedly they aren't changing the oil for over 100k miles. Do keep in mind, they are working with a 10 gallon+ system capacity.
On my tow rig ('04 CTD, 12 qt system capacity) I ran synthetic oil w/ Donaldson Endurance filter out to 12,000 miles and never had any trouble. Also the sampling every 3k miles is a great idea.

Not pimpin any particular brand, just what my exp is with.

So this is something I am definitely going to do with the superduty, especially give the $110 oil changes now. :eek:

The 7.3 diesel is rather intolerant to extended drain intervals. It's OK for about 10,000 miles, but regardless of oil used, filtration capability, or analysis results, the HEUI fuel system relies on high pressure oil (to the tune of 3000 PSI at full load) and when it gets "old" it aerates badly. IH has a bulletin on this, and they do offer an anti-foaming additive. It's gonna be cheaper to change the oil every 6-10K though, since the injectors will scuff the injector's intensifier piston O-rings with sooty oil, which can't be filtered out effectively, even with a centrifugal filter.

The 7.3 diesel is rather intolerant to extended drain intervals. It's OK for about 10,000 miles, but regardless of oil used, filtration capability, or analysis results, the HEUI fuel system relies on high pressure oil (to the tune of 3000 PSI at full load) and when it gets "old" it aerates badly. IH has a bulletin on this, and they do offer an anti-foaming additive. It's gonna be cheaper to change the oil every 6-10K though, since the injectors will scuff the injector's intensifier piston O-rings with sooty oil, which can't be filtered out effectively, even with a centrifugal filter.

Its called sheering, and for the most part the mild 7.3Ls don't cause as much of a problem. The 6L is really bad with the HPOP in them, and the guys running big oil have a real problem with it. One of the guys on PSN did a lot of research and analysis into this. This is why I will be doing the Blackstone tests every 5K for a while, then switch to 10K. If Blackstone says the oil needs to be changed I'll change it.

I put the bypass filter and new oil in the Grand over the weekend. I will be doing the superduty in a month or two. Its sits, which is another reason to do this as the Amsoil oil should offer better protection for an engine that is not driven much. Even if I don't get 60K out of the oil in the superduty the extra filtration and better quality oil helps, especially with oil being so expensive.

I will start another thread for the Grand install. I got some pics I'll post. I guess I need to put it in the Jeep-Non Hardcore since the Grand lacks some important Jeep parts, like the transfer case and front axle. :D

The system by Filtration Solutions (http://www.fs2500.com/) is another one that I've heard is pretty good. Not running a bypass system yet myself.

I bumped up to changing it every 10k-12k (with analysis by CAT) in my Dmax. So far no problems with the 2 I've done. I'm not running a lot of miles (have a different DD) so am content with changing it once a year.

I'm interested to see the results on your jeep brother, and thanks for all the stuff you've done for me! I've got a few things for you... Can I just send them to your work addy?
Scott

Sending things to my work results in them ending up in receiving and security hell. We have lost gov equipment worth MILLIONS. :eek: Home address is more reliable. :D

I was going to post pics and a write up last night. I am going to work on the write up today. Started taxes last night. The good news is I will probably get a refund. (New House + First year as rental for condo + 6 months of no rent on condo + wife not working) = NO INCOME TAXES. :flipoff2:

Next year may suck :eek: Especially if they don't re-evaluate my house and condo which has lost combined market value of $150K :eek:. Property taxes are currently over $15K. :eek:

Luckily my mortgages are low. :D

Stay tuned everyone, more info to come. :D


EDIT: And Thanks too you to Scott. I got some homebrew with your name on it.

The addy you gave me is your home address correct? And you know how much I like my beer... :D Homebrew :smokin:
Scott

Sending things to my work results in them ending up in receiving and security hell. We have lost gov equipment worth MILLIONS. :eek: Home address is more reliable. :D

I was going to post pics and a write up last night. I am going to work on the write up today. Started taxes last night. The good news is I will probably get a refund. (New House + First year as rental for condo + 6 months of no rent on condo + wife not working) = NO INCOME TAXES. :flipoff2:

Next year may suck :eek: Especially if they don't re-evaluate my house and condo which has lost combined market value of $150K :eek:. Property taxes are currently over $15K. :eek:

Luckily my mortgages are low. :D

Stay tuned everyone, more info to come. :D


EDIT: And Thanks too you to Scott. I got some homebrew with your name on it.

Got a write up done on this yet??? :D
Scott

Yup.

Write up:
http://www.pirate4x4.com/forum/forumdisplay.php?f=67

The addy you gave me is your home address correct? And you know how much I like my beer... :D Homebrew :smokin:
Scott

Yeah thats my home addy.

I kegged a Blonde Ale on Friday. Its OK. I mashed a bit too high and screwed up my water volume calculations :shaking:. Still learning my new system. Its carbonating and I will see how it is in a couple of weeks.

Yeah thats my home addy.

I kegged a Blonde Ale on Friday. Its OK. I mashed a bit too high and screwed up my water volume calculations :shaking:. Still learning my new system. Its carbonating and I will see how it is in a couple of weeks.
I'll come help you taste test ;)
Scott

I'll come help you taste test ;)
Scott

I brew every other friday morning. If you can get the time off and don't mind drinking at 7 in the morning, come on down. :D

As soon as I can turn my weed garden into a yard we will have some sort of party.

How much synthetic do you burn?

Put full synthetic in my wife's jeep - it burnt through it fast enough that I would never need to worry about changing the oil. dino oil - it burns none.

A club members jeep burnt it so fast that it actually smoked.

The durango (5.9L) was running a synthetic blend, it burnt it 5x faster than my other 5.9L burns through dino oil. My other 5.9L will burn some dino oil, but we are talking 1 quart over 700-1000 miles of towing 8,000lbs. The durango went 2 quarts down in 40 days and maybe about the same.

I can't imagine I'm the only one that experienced this. And as much as synthetic costs, it's not cost effective adding a quart every 2-4 weeks depending on vehicle.

I'll have to keep an eye on it, thanks Travis. Only have maybe 500 miles so far. The wife doesn't drive that much anymore. Maybe 30 miles a day when she is out and about. The boy is going to a classroom based innovation center now thru the Charter school. Its about 15 miles away.

The major mileage on the Grand is on trips when we don't take the big truck and hauler. I have to admit, that thing is NICE on long trips. :D

Interesting.. I run synthetic in my 88 toyota pickup with 213,000 miles on it. I swapped over from dino at about 198k miles and haven't burned a drop yet. Haven't changed it yet either. I changed over to synthetic on the dodge at 35k, and it has almost 50k on it now, with no changes, and no burning.
Scott
How much synthetic do you burn?

Put full synthetic in my wife's jeep - it burnt through it fast enough that I would never need to worry about changing the oil. dino oil - it burns none.

A club members jeep burnt it so fast that it actually smoked.

The durango (5.9L) was running a synthetic blend, it burnt it 5x faster than my other 5.9L burns through dino oil. My other 5.9L will burn some dino oil, but we are talking 1 quart over 700-1000 miles of towing 8,000lbs. The durango went 2 quarts down in 40 days and maybe about the same.

I can't imagine I'm the only one that experienced this. And as much as synthetic costs, it's not cost effective adding a quart every 2-4 weeks depending on vehicle.

I've been doing this on my Cherokee. Only without the oil analysis, or the bypass filters, or even changing the filter. Hmm, now that I think about it, I haven't even checked the oil in 6 months.

I do extended changes changes on the wife's Acura. I change the filter everytime the car tells me the oil needs to be changed and I change the oil every other time. It usually ends up being about 15-16k miles. I don't bother doing samples on it any more or wasting the money on oil more expensive then Mobil 1.

I've been doing this on my Cherokee. Only without the oil analysis, or the bypass filters, or even changing the filter. Hmm, now that I think about it, I haven't even checked the oil in 6 months.

I do extended changes changes on the wife's Acura. I change the filter everytime the car tells me the oil needs to be changed and I change the oil every other time. It usually ends up being about 15-16k miles. I don't bother doing samples on it any more or wasting the money on oil more expensive then Mobil 1.

For the most part the whole 3000 mile oil change is a scam promoted by oil companies and oil change shops like Jiffy Lube. Take an owners manual into a Jiffy Lube of almost any new car and show them where it says 5,000, 7,000, or more mile oil change and see the look of stupid first hand. :shaking:

For the most part the whole 3000 mile oil change is a scam promoted by oil companies and oil change shops like Jiffy Lube.

I'm well aware of this, I used to make a living selling people on the 3k oil change scam. :D

I'm well aware of this, I used to make a living selling people on the 3k oil change scam. :D

NICE! Good gig to have. :D

Interesting.. I run synthetic in my 88 toyota pickup with 213,000 miles on it. I swapped over from dino at about 198k miles and haven't burned a drop yet. Haven't changed it yet either. I changed over to synthetic on the dodge at 35k, and it has almost 50k on it now, with no changes, and no burning.
Scott

I think a lot of that has to do with how the engine is broken in. The old engine builders I knew talked about this. Also there are a lot of things the newer engines do that can prevent this, like high tech coatings and higher tolerances. A lot of this used to just be the realm of the performance minded, but many of the OEMs are using this stuff to extend engine life and increase reliability.

Your not going to sell many $50K trucks if they only last 80,000 miles. :D

The one thing I noticed when pouring the 10w-30 synthetic or blend and dino 10w-30, the synthetic seemed "thinner".

The one thing I noticed when pouring the 10w-30 synthetic or blend and dino 10w-30, the synthetic seemed "thinner".

Probably why the Grand seems to run smoother now. The biggest advantage I see with my superduty is that the syns offer better protection for engines that sit. I don't know if thats hype or not, but I believe it based on the tech articles I have read in the past. Since my truck sits 90% of the time that is a definate advantage. For the Grand I am looking for fewer oil changes, better protection, better mileage, and less impact on the environment and economy.