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CrowsSynthetics

2003 Dodge with 633k miles and still going.

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i'm not that surprised...more that the body and dash are still one piece.... no but seriously the powertrain can last a long time with regular maintenance. that ram has been averaging 100k a year...

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I guess what got me was the 40k oil changes with the new filter at 20k. I have went 38k with my truck but was very reluctant to go any farther. I felt the soot was to thick for me anyway and i have a by-pass he did not.Bill

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idk... with my bury machine you do oil every 60 hours but the hydro fluid is only changed 300hours and the hydro filter was 150hours... oil doesn't "break down" like they try to sell on TV... it only becomes contaminated(by blow-by,water,etc). i still maintain that proper maintenance is changing fluids when necessary. nothing wrong changing sooner, but next to no benefits unless the fluid needs to be changed...the medium duty market gets 500k all the time...and most of it is regular dino!

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idk...the medium duty market gets 500k all the time...and most of it is regular dino!

There sump capacity is 3 times the 5.9 I would think this is a big factor in drain intervals. You said something about dirty oil that is were good filters come in. Here is an article you might like to read. Bill

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I have 756k on my 2001. I used to change my oil every 20k miles. I change the oil about every 10 now.

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I have 756k on my 2001. I used to change my oil every 20k miles. I change the oil about every 10 now.

do you have a bypass filter? what oil do you usually use? you should add your vehicle's year to your signature.

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I do not have a bypass filter. I use dello or rotella, whichever is cheaper. I use fleetguard filters exclusively.

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You guys have made my point the dodge with 633k went 40k on Amsoil no by-pass just Amsoils 2-EAO 80 filter which filters at 16 microns. The fact buying better oil does make a difference IMO high milage is attainable with good oil & good filteration. The poster using a by-pass filter with other oil just shows filtering the oil does helps you go longer on oil and drain intervals if he used Amsoil for instance and the bypass he could go 30k or more.Bill

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I ran the first 500k on my tuck with 20k miles changes. I only went to 10k intervals recently. I just took the heads off my truck and everything looks great. I don't think I made your point though. I never tried to run my oil for 40k so there is no comparison. I think my 750k miles proves longevity from normal oil. As your 633 may prove longevity also. I pay about 10 a gallon for oil and 12 per filter. Amsoil is about 30 a gallon and 25 a filter. So in that scenario I am at 42 a change and amsoil is 140. If you are to look on the amsoil sight they reccomend changing the oil at the longest of the factory intervals which is 15k miles. I believe that if synthetic oil was better the big rig guys would use it. Their trucks go 2 million miles. They use regular oil.

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If you are to look on the amsoil sight they reccomend changing the oil at the longest of the factory intervals which is 15k miles.

I am not looking to argue Amsoil recommends 25k. Go here in the service life on my web site and here is Amsoils. There are a lot of big rigs using it FYI. Go to my front page www.freeoilhelp.com There are several articles the Mack truck, refuse hauler using the DT466 the 8.2% is on class 8 trucks. There are more that is just a few. I have a 7.3 I have went 38k on one oil change with oil samples to justify that. It can be done the cost I look at the cost as it is worth it to me. You are obviously very particular or you would not have a truck doing so well. Well Done Bill

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I worked on a local farmer/truckers Freightliner for a few years, He had 1.3 million miles on the truck, 3406B cat engine, He had owned it since it had 100k mile on it, He was a Schaeffers oil dealer and its what he was using in it and had never done 1 single oil change in 1.2 million miles. every 10k he changed the oil filters and topped off the oil about 2 gallons per filter change. He wanted to pull the pan to check main and rod bearings and to my and his surprise they looked like brand new yet.:eek: So they went back in and it is still running to this day.

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wow!i hear a lot of rig guys say, put synthetics everywhere but the motor. a lot of people around here believe that longer intervals can be bad. for the money, most would rather drain and fill. they argue the cost per mile. i have used both and would recommend using what ever cummins says to use(goes for fuel also).

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He is not the only one, many people are using that process now and even most syn mfgs and OEM engine builders are recommending that process. All the oil eventually gets changes out anyhow via the filter changing. Lots of new Offroad equipment never get the oil changed at all, it meters so much used oil into the fuel tank and has a clean oil tank that refills the crankcase through a metering process. Just change filters every X amount of hours and keep the new oil reservoir full. Its called oil renewal system on CAT equipment.

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I change oil every 10k on my 05 with the amsoil bypass. Just my thing as the newer ones burn a lot sootier than the older ones. Plus it runs a lot of unsavory conditions year round.

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I've run AMSOIL for over 16 years in everything I've owned with great results. Because of that long track record, I decided to become a dealer. My 2002 has low miles compared to most. I'm only at 92k now, but I run the AMSOIL Bypass Filtration System with AMSOIL AME 15W40 Heavy Duty Diesel and Marine Synthetic engine oil. I used to run 30k intervals, but now with my low miles I just change oil and filters once a year since I'm not doing over 30k a year anymore. I run AMSOIL everywhere in the driveline as well. All my vehicles, tractors, small engines and equipment (2 and 4 stroke) all run AMSOIL. I've never had an engine failure in all my engines over the years. -Chuck

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Chuck I have been using Amsoil for 7 years not as long as you but I can be certain I am getting the most for my money in protection and longevity of equipment. Bill

Yup, that's for sure, Bill. I was just talking to a heavy equipment mechanic today at a large construction company that I supply AMSOIL to. The shop manager has seen the results of running AMSOIL in all their big cranes, forklifts, trucks, etc etc., but some of his mechanics have been skeptical. This guy I got talking to this morning is an old timer mechanic and said he has been a conventional oil guy his whole life. He said that when they started having him put AMSOIL in all their heavy equipment, he thought is was a waste of money. Now this guy is a very opinionated guy, and he'll tell you what he thinks and tear you a new a-hole without even knowing your name, so I was kind of expecting a rough conversation. I was surprised when he said, "I was skeptical but this AMSOIL stuff keeps proving me wrong over and over again." He is the guy who has to fix and maintain this industrial construction equipment, and he sees all the failures in the cold winters we have up here in northern Wisconsin and Minnesota. During our 40 minute chat, he told me how one morning up in Cohasset, Minnesota, he has 5 rubber tired cranes on site. It was -22 below Fahrenheit (-40 with the windchill) and only one crane would start (Cat HEUI engines). The other 4 would barely crank and he never got them started. The one that started was the one he had switched to AMSOIL. Second story was about their very large rubber-tired crane. I'm not sure what brand of equipment this thing is, but it is friggin huge - the bottom of the crane's counterweight is easily 12 feet off the ground. It took 250+ gallons of AMSOIL hydraulic fluid, and last week they were using the crane to lift loaded rail cars that had derailed. He said they were amazed at the hydraulic speed and power the crane had in -10 degree temperatures. They never had that kind of performance while running petroleum-based hydraulic fluid. Also, winter after winter, he said that their fleet of Ford diesel pickups and International medium duty trucks perform better on AMSOIL AME 15W40 than they ever dreamed of. He says he has less down time, better starting, and double service intervals with AMSOIL. If this old mechanic can see the proof in a fleet of trucks and equipment and have his mind changed, I think anyone can. -Chuck

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ChuckI have a story for you I had Live Nation come to me with a transmission failure problem. If you do know they own Grave Digger monster trucks.The have been using Amsoil ATF for now 4 years with great success. Coan Transmission told them they would not slove there failures until they switched. They are very happy customers now.I wish I could convince some of my contact to get over there fears as he did.Bill

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