Amsoil vs. Delo 400

[JCasper]

Don't want to start a war on oil. I currently have amsoil in my truck now at 25k miles. I am looking at running this truck for a long time. I would like to be able to see 400k.



My question is this, what is everyones opinion on using amsoil to achieve this kind of mileage. My dad has been a school bus mechanic for the last 25 years and has used nothing but Delo 400 in every motor they have gas or diesel. He told me just to change it often and use a good filter.



Because it is so easy to get and has a good reputation I thought I would use Delo 400 and a fleetguard stratapore filter every 5k miles. I don't do very much towing and usually just commute 30 miles each way to work at 60 mph.



What do you high mileage guys think. I live in the NW so there isn't any extreme weather.

 

[scootergmc]

Delo is fine. Amsoil is fine. Regular, frequent oil and filter changes with any *decent* oil should get you to a quadbillion miles.

 

[dhill]

My '97 had 227k when I sold it and was doing very well. Delo 400 and a Wix filter every 3000.



Dave

 

[Bschneider]

I've always used Delo and Wix; lab results always showed positive things...

 

[jwilliams3]

Delo is good stuff, he told you right!

 

[JCleary]

Delo is great stuff. My family's equipment rental business used it in EVERYTHIING diesel in the fleet, including 22 rigs and 10 service trucks, as well as generators, air compressors, forklifts, etc. (many of which used a Cummins B series, and all our rigs had M11's and N14's)



We had never had an oil-related failure (unless a customer ran something out of oil, that is) up until we sold the company.



This is why I use Delo in my truck.

 

[RustyJC]

Because my truck works hard towing our 5th wheel (see signature) 90% of its working life, doesn't accumulate many miles (~26K at present) and is overfueled (and, thus, generates more soot), I use Delo 400 and Fleetguard Stratapore filters changed frequently. The Cummins likes it just fine!



Rusty

 

[Iguide]

I changed to all Amsoil,{ motor, differentials, transfercase, & NV5600} and when I did I had an immediate increase of MPG of 10%, & it has slowly risen since as the truck has broken in. Now I average 22. 5 to 23. 1 mpg around the area & I live in the mountains. Went on a trip out to Ft Drum last week to pick up a trailer. Averaged 25. 5 mpg on the way out at 55mph & 20. 7 on the way back at 55mph, 365 miles each way in flat country. Those figures are by hand and the computer. Since I had the computer reflashed, they have been almost exactly the same. Therefore, for those that are going to say you do not believe it. Come out here and I will run my truck against yours any day. When you leave you will be eating your words. Yea, I kinda have an attitude about this as I stated this before and been told that it was not believable, & it is not worth my time to bother with it if it was not fact. So please excuse me “bluntness”. For me that is a good enough reason to use Amsoil over anything else.

 

[RustyJC]

At the risk of turning this into an oil war, I don't think anyone has criticized Amsoil. We've just pointed out that Delo 400 is a quality dino-based lubricant that delivers excellent service in the Cummins.



Rusty

 

[scootergmc]

Amsoil sucks! Delo Rules!! Meet me at the bike racks at 3:00pm!!

 

[mberry]

LOL Scooter! I have used both. I'm running Amsoil right now. Either oil with regular oil changes and a good filter will let you reach your goal.

 

[RTuvell]

I changed to all Amsoil,{ motor, differentials, transfercase, & NV5600} and when I did I had an immediate increase of MPG of 10%, & it has slowly risen since as the truck has broken in. Now I average 22. 5 to 23. 1 mpg around the area & I live in the mountains. Went on a trip out to Ft Drum last week to pick up a trailer. Averaged 25. 5 mpg on the way out at 55mph & 20. 7 on the way back at 55mph, 365 miles each way in flat country. Those figures are by hand and the computer. Since I had the computer reflashed, they have been almost exactly the same. Therefore, for those that are going to say you do not believe it. Come out here and I will run my truck against yours any day. When you leave you will be eating your words. Yea, I kinda have an attitude about this as I stated this before and been told that it was not believable, & it is not worth my time to bother with it if it was not fact. So please excuse me “bluntness”. For me that is a good enough reason to use Amsoil over anything else.

I for one have a hard time believing your claim of 22. 5 to 23. 1 mpg average combined driving. I also have a hard time believing that your fluid change is responsible for a 10% mpg increase. I don't necessarily expect you to "prove" your claims, but your "bluntless" comes across as a little bit shallow because you don't provide any details about your truck. If you would really like us to get your perspective in context then it would help if you provide a few details about your truck such as year, trany type, body style, 2wd vs 4wd, SRW vs. DRW, miles on truck, etc.

 

[JCasper]

At the risk of turning this into an oil war, I don't think anyone has criticized Amsoil. We've just pointed out that Delo 400 is a quality dino-based lubricant that delivers excellent service in the Cummins.



Rusty

That is all I was looking for. I do use amsoil in my diffs and right now in my motor. I just don't like the idea of leaving it in for so long. I feel better if I change my oil a little more often. If you run amsoil you have to leave it in for quite a bit longer to equal the same cost, and I have heard of a lot of people using Delo who have very good results. Not to mention I hate amsoil's 1 gallon jugs. The Delo jugs pour much better.



Thank you for all your responses.

 

[DaveHess]

I noticed nobody mentioned Rotella T. Not loking to stir anything up but that is what I have been running. Is Delo 400 a better lubricant than Rotella T? Love to hear some opinions. And I won't be meeting anyone by the bike racks at 3:00. Unless she's a blond!

 

[DaveHess]

Also, how do I get this darn posting stuff to put all the info on my truck like you all do???

 

[JCleary]

Also, how do I get this darn posting stuff to put all the info on my truck like you all do???

Rotella T is good oil as well, but some find the odor offensive. Delo doesn't stink as much.



Go to the User Control Panel and fill out your signature, then it will be at the bottom of the first post you make on each topic.

 

[Buffalo]

In one of the earlier TDR's, there was an article by a couple that towed trailers for a living. They had 1,153,000 miles on the truck without an engine rebuild. The neat thing was that they documented everything they had done to the truck.



Basically, they used Shell Rotella, 15w-40 with Fleetguard filters and changed the oil every 5000 miles.



As I recall, the engine was getting a little tired but, they still used it, occasionally, if one of their two new Dodge/Cummins was down or in for service.



In some of the Amsoil adds, they show a comparison to other oils, including Rotella and Delo 400. The Delo 400 comes out slightly better. Some are saying that the new Delo 400, CI-4+ is even better with the addition of Moly and Boron in the additive package. Makes is even more slippery, I believe. Some are, also, saying that the difference in quality between some of the conventional oils and synthetics is not as great, as it used to be.



I may be off-base on this but, it seems to me that if you did a lot of long-haul driving, a synthetic oil with a by-pass oil filteration system and extended oil drain intervals might be the "hot set-up", for convenience sake.



Joe F. (Buffalo)

 

[RDietze]

insurance

i think a good oil bypass system would add insurance to a higher total mileage outcome - bypass meaning: adding another filter that cleans down to 5 microns to the existing stratapore full flow filter.

i'm shopping for amsoil and the best oil bypass sytem for myself right now -- i've narrowed it down to the amsoil bmk-11 or premo oil refiner.

avoid the dual bypass amsoil, it is noisy and will cost you more all the way around.

getting testimonials on the premo refiner have been like searching for a needle in a haystack - people have'm, but they don't like to talk about them (does that mean something :-laf )



cheers

 

[Buffalo]

If you seriously wanted the Amsoil Dual by-pass system, without the vibration noise, John Strenkowski 860-642-7033 makes an adapter that mounts the system on the engine block, above the turbo. I think the entire adapter/filter system is around $441. 00.

I believe LightmanE300 has one of these systems and I believe he likes it.



Another one, you might consider, is the Oilguard EPS-20. It filters down to 1-2 microns. You can talk to Mark at 760-967-0892 or Oilguard.com. I don't remember their pricing but, the system looks good, to me.



If you want more information, get on the website bobistheoilguy.com and look at the "oil by-pass" forum. There is a tremendous amount of information on that site. However, there is one guy that really pushes toilet paper filters. I think they work but, you have to change them quite frequently. Becomes a pain in the area where you would traditionally use toilet paper, if you know what I mean!!!



Hope this helps.



Joe F. (Buffalo)

 

[JBlock]

Delo is find, i have a friend who runs a Backhoe service. He run Delo in everything from the lawn mower to the catapilar backhoe. He has over 100,000 hours on the orginal engine, and that at maximum rpm without a failure. Changes it like clock work.



Saying that I run Amsoil, but that just to buy 10,000 mile changes and filter every 5,000 for my own convience. The picture have been post and amsoil engine always have a spot less valve cover underside. With the turbo temperature on the cummings, especially if you up the power, it cheap insurance.



The choice is yours.