WHAT KIND OF OIL DOES EVERYBODY USE? THE REASON I WAS ASKING WAS BECAUSE I WAS THINKING OF CHANGING AND WAS WONDERING WHAT WAS GOOD. I AM USING CASTROL HEAVY DUTY AND NOT REAL SURE IF ITS MADE FOR MY TRUCK SO I THOUGHT I MIGHT CHANGE.

Mobile Delvac 1 5w-40 at the moment. Good stuff but expensive.

Chevron Delo 400 15w-40


I've only changed my oil on this truck once so far, so take that into consideration.

I've used Shell Rotella-T 15W40, Mobil Delvac 1300 Super 15W40, and Shell Rotella-T 5W40 semi-synthetic. Still got at least one change of all three on-hand. Will be trying Schaeffer's 7000 15W40 and maybe Mobil Delvac-1 in the future. Any modern diesel oil with the proper ratings is fine. I prefer the 15W40 regular oils in the warm months and a synthetic in the colder ones. I've had excellent oil analysis results on all the brands that I've used so far.

Chevron Delo 400 15w-40 is inexpensive at Costco. I used it for 168,000 miles in my '84 6.2L diesel before I sold the truck.


Rotella 15w-40 is inexpensive from Sam's Club or Wally World.


Both have the recommended API service designations for the LLY and LB7.

Lubrication Engineers, Inc.

http://www.le-inc.com/products/Eo/EO_Main.html

Valvoline Premium Blue 15W-40 in the summer.


Shell Rotella Synthetic 5W-40 in the winter.

Mobil Delvac 1


If I wasn't using the above, my next choice would be Chevron Delo 400.

In Vermont, where we take our snow tires off on June 15 and put them back on August 15, Shell Rotella 5w-40 synthetic.

Rickles04...whatever you go with, just make sure it has not been involved in any class action lawsuits..http://www.dieselplace.com/forum/smileys/Wink.gif

Schaeffer's 7000 Supreme 15w40 Synthetic Blend. A shade under $13.00 a gallon at my local Schaeffer's dealer. Excellent product, reputation, and backed up with research. There are several sites out there with the research, just check via search engine.


Just chiming in.

Been using Delvac 1 since first oil change 25,000 miles ago. Seems like good stuff.

TC

Chevron Delo 400 15w-40

Rotella 15w-40. I'm very happy with it. http://www.dieselplace.com/forum/smileys/Big Smile.gif

Delvac 1300 15W40. Hard to beat at $5.88 a gallon at Wal-Mart.

Rotella 15w-40 sense truck was new.

Mobil Delvac 1300 Super 15W40


Same as what Pick said, until I get 10,000 on the truck. Then it's Delvac 1 for the rest of it's life.

Considered Delvac-1 could not find it anywhere, Went with Rotella-T 15w-40.


For the guys usind Delvac-1 where are you buying it and how much are you paying?


Corsair

Delo 400 for me. Plan to stick with it for the life of the truck. The truck will wear out before the DMAX will anyway, so any dino CI-4 oil will do the job.

Rotella 15W-40 for me @27K no issues. Might use the Rotella Syn 5W-40 next winter just for better starts when it's cold, then back to the 15W-40 in the spring.


JP

How about Amsoil 15/ 40 marine diesel? Has anybody used it and what do you think?

ditto here - delo 400 from costco; Doesn't get cold enough to warrant synthetic, and I am going with 5k mile change intervals regardless of oil...


Doing chevron in the transmission too - chevron atf from costco - I am going to change it out annually. Cost per quart is less than a buck and it has "iso-syn" label (chevron hydro-cracking process which gives "nearer to synthetic performance"?).


- jeff


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How about Amsoil 15/ 40 marine diesel? Has anybody used it and what do you think?


I just put this in my truck last week. It is noticibly quieter running.http://www.dieselplace.com/forum/smileys/Big Smile.gif and oil pressures seem to be running the same as with the oil the dealership used.


I also bought the Amsoil gear lube and plan on changing both diffs next week.


This is the first oil change I have done on my truck myself. I also installed a Fumoto drain valve...Definitely a must have product!


I plan on changing the filter at about 3-4k mile intervals, and oil changes at 7-8k intervals. I was thinking of using Mobile 1, but after talking with Greg from AV lube, decided to give the Amsoil a try. It is also less expensive than the Mobile1 synthetic. The infamous tick has quieted down since I changed the oil also.http://www.dieselplace.com/forum/smileys/Ermm.gif


I was very pleased with AV lube's service, I placed my order with Greg over the phone on a Friday, and I received my order on Monday! Wow!http://www.dieselplace.com/forum/smileys/Clap.gif I ordered my fuel filters, ss bleeder screws, gear lube and fumoto valve from him also.





Kevin





Edit: I also got an oil analysis kit from him...I plan on taking a sample at my next oil change.Edited by: Fireman

Corsair Wrote: Considered Delvac-1 could not find it anywhere, Went with Rotella-T 15w-40.


For the guys usind Delvac-1 where are you buying it and how much are you paying?


I have purchased Mobil Delvac 1 online several times from AVLUBE. They are a supporting vendor on this forum.


http://store.avlube.com/index.html





Sometime this spring, Mobil will be selling Delvac 1 under the name of Mobil 1 Truck &amp; SUV at retail outlets. It will be available in Walmart and auto part stores. Keep a look out for it.


http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil_1_Truck_SUV_5W-40.asp





Alan

5-40 Valvoline premium blue extreme synthetic here.


Ron

How about Amsoil 15/ 40 marine diesel? Has anybody used it and what do you think?


I have used it in my '99 diesel sub, boat, and d-max. I recently sold a 95 Chevy Cavaliar that had a 175K on it using Amsoil. I think the key with whatever motor oil you decide on is staying with a good maintence shedule. Just my 2 cents.

I've used Shell Rotella 15W-40 for years in several different trucks (from 300 hp to 500 hp) with excellent results. However, my D-MAX got it's first change at 5000 miles with Mobile Delvac 1300 Super 15W-40 for two reasons. Some tests I've read shows the 1300 to flow SLIGHTLY better at colder temps. The 1300 is also a little cheaper at my Wally World. BOTH oils are, IMHO, very good. As far as the issue of synthetic vs dino goes I'm in favor of the dino for MOST light duty pick-up truck applications. Unless you operate in an extremely cold climate or you wish to go to a really extended oil change ( mileage wise), I see no great value in using synthetic motor oil. I will continue to use the 1300 and change it and the filter every 5000 miles.-------------------------http://www.dieselplace.com/forum/smileys/Cool.gif------------Phil

We use Union T5X 15-40 in all Tractors, Combines, Lawn tractors, It's good for the new 04 Dmax also. Just my .02 http://www.dieselplace.com/forum/smileys/Clap.gif

How about Amsoil 15/ 40 marine diesel? Has anybody used it and what do you think?


Been using it since 3000 miles. Out performs Mobil 1300 15W-40. Would recommend Amsoil to anyone.

Schaeffers in everything I own

Mobile Delvac 1300 Super 15w40. The best analysis I've had to date. Excellant additive package w/ lots of Molyboenum (friction reducer)

I've been using Mobil Delvac 1300 Super 15W-40. I'm getting good fuel mileage with and the price is affodable. Going to try Mobil Delvac 1 Truck/SUV.http://www.dieselplace.com/forum/smileys/Approve.gif

Shell Rotella 15 W 40. Was using Quaker State, but people 'round here say Shell is the best. Alot of people stateside say Amsoil synthetic is the ONLY WAY TO GO, but it is dear ($$$$)http://www.dieselplace.com/forum/smileys/Confused.gif

amsoil 15-40 marine syn here.

I like the 15k oil change with secondary filter.

amsoil 15-40 marine syn here.

I like the 15k oil change with secondary filter.


At the 15K interval what does your truck's DIC indicate for % oil life remaining?

I use Amsoil Series 3000 5W-30. I take a sample every 10,000 miles, change filter and top off to fill line on dipstick. Over 52,000 miles and haven't touched the drain plug, except to wipe off oil from the blow-by tube.


Paul

As has been said before, any good brand name diesel oil will be fine with regular changes. I personnally use Mobile 1 Delvac.

Delvac 1 and change at 10,000 miles unless going on a long towing trip, then change just before and after trip.

what about the castrol rx for diesels......anybody got any input on that

Just changed to Mobile Devlac 1 Syn this weekend at 5,000 miles. Question: How long should I wait before the next oil change?

Mobile Delvac 1300 Super 15w40 - before winter and now Shell Rotella Synthetic 5W-40 in the winter.I am not sure where to go from here. I want to get the 5w-40 out for the spring.

i use mobil delvac 1 5w40, have used it for 22,000 miles and change it at every 10,000. i also have amsoil bypass to help filter to that point. its a good thing i use the bypass, have you seen my afe intake. check out the "dirt and copper in oil post"


john


02 3500 cc lb 4x4 lt/ with discarded afe stage 2 intake

what about the castrol rx for diesels......anybody got any input on that


I use Castrol RX because it's the cheapest top name brand oil I can buy, Costco $2.16 per litre Cdn. seems just fine so far.


I do change it every 3,000 miles.

i havent seen it mentioned here, but whats everyones experience w/ Lucas. We run it in a 93 powerstroker w/ almost 400k, and many of our bigger farm equipment (ie: cougar/panther II steigers &amp; IH 4786) Claims to be in higher mileage rides...Thanks-Adam

royal purple synthetic 15w40

Delvac 1300 super 15W/40 CI Rated, with oil changes at 703 miles, &amp; 4,008 miles the rest will be at 2,000 for now. At the 10,000 mile mark I will do an oil sample and determine if I will go to 4,000 mile oil change interval with dhino. and resample at 15,000 miles. I tend to be on the over maintenance side as far as most are concerned.

I'm running castro syntec 5-40 but I'm curious why I haven't seen anyone else using it?

Royal Purple is what I use in everything.

Nuthin' but Redline for my baby...

Delvac 1 8,000 mile interval, new filter every 4k. May go to 10/5 k intervals after oil test.

I run Delvac 1. I researched oils quite a bit, and have a close friend who works in fluids and lubricants at GM. He has been testing oils for GM for over 20 years (a chemical engineer) and seems to strongly endorse Mobil lubricants and Texaco (havoline) lubricants. I stick with mobil for everything, even grease, gear lubes, etc. If you don't want the expense of delvac 1 ($100 a case/ $25 a gallon) then I would run delvac 1300 which is the organic version and much much cheaper. I run 1300 in my backhoe, and have been happy with that as well. Given a Duramax is a $5000 option, I run synthetic (Delvac 1) in my truck. For intervals, I change about every 250 hrs (same as my backhoe) or 7,500 miles, whichever comes first.

Why is it so hard to find Delvac 1. I've been looking in my area for a week now and about a dozen auto parts stores and or truck stops, Sams club, walmart, costco,and when I say Delvac 1, I ALWAYS get a HUH????Edited by: Kendall69

Kendall69,


The Flying J truck stops sell it. I believe they have Flying J's all over the country (and Canada), too. It's available at my local Flying J located at the junction of I-20 and I-45 in Dallas, TX. Good Luck!

Thanks for the assist, but my local Flying J only does the 1300

I'm running castro syntec 5-40 but I'm curious why I haven't seen anyone else using it?


It appears thet the reason you haven't seen anyone else comment on Castrol Syntec is because it doesn't meet the API specification that the Duramax manual (Diesel Supplement) recommends.


Straight from the Castrol website and specifically about Syntec:


SAE 5W-40: is engineered specifically to meet the Volkswagen engine warranty requirements, exceeding VW 502 00 and 505 00. Exceeds all car and light truck manufacturer's warranty requirements for the protection of gasoline, diesel and turbocharged engines where API SL, SJ, SH, CF or CD is recommended. Porsche approved and also exceeds European ACEA: A3, B3, B4, MB 229.3, MB 229.1, BMW LL-98. Meets the engine protection requirements of Corvette GM 4718M, Volvo, BMW, Mercedes Benz and ILSAC GF-3 for API Certified Gasoline Engine Oils.


It does not have the CH-4 or CI-4 API certifications that the diesel supplement calls for.Edited by: Hound

Shell Rotella 5w-40 synthetic

Valvoline 5/40 Premium Blue Extreme Synthetic.


Steve

Hound is correct, Syntec 5W-40 does not meet CH-4 or CI-4 as required by the Duramax. Also, it is not generally available other than at Volkswagen dealers.


I use Rotella Syn 5W-40 purchased at WalMart.

I just got off the phone with Mobil explaing what a hard time I am having buying Delvac 1, and he says buy the SUV stuff, it's the same thing. Problem solved, because I can buy that stuff.
Anyone using the SUV stuff?

Whats the problem finding Delvac 1 ?? You can order right off the web from George at AV Lube. http://www.dieselplace.com/forum/smileys/Clap.gif

I don't even want to guess what shipping would be on 6 cases, yes I said six cases of oil.

If I can find it local I could save the shipping cost.

But, with the SUV Mobil being the same product, I'm good to go.

Amsoil. Had too many gassers go the limit with none of them requiring top off between changes, and I never change more than once a year. I find it interesting that someone would choose an oil for the cost and then change it every 3000 mileshttp://www.dieselplace.com/forum/smileys/Disapprove.gif
Amsoil with analysis should allow extended oil changes to the 10K to 15K, and at that rate its effective cost is less than a buck a quart as compared to the change every 3000 miles at 2-3 bucks a quart.
We are talking about a $45K truck, and the cost of oil is not much of an operating cost percentage. I say put the best you can buy and run ithttp://www.dieselplace.com/forum/smileys/Approve.gif
From the various post here, any quality oil should make the MAX happy, it is a matter of how often you want to crawl under the ole gril. I am getting too old for much of that.

Looks like only 1 other besides me,


REDLINE 15W 40. Have been since 10K miles. I change it every 12K miles, No oil analysis for me, flat way to much information for a daily driver. I change oil filters 2 times between changes. 80K+ miles still do not use a drop. I add 10 qts to it and do not look again. Keep it simple.

does anybody or what do people think of royal purple synthtic

Moss22,





I've never used it because it cost so much...I'm sure they make a good 15W-40 diesel oil, but it will set you back.


I'm using Mobil Delvac 1300...http://www.dieselplace.com/forum/smileys/Big Smile.gif

i can get it for like 60 a case or so, how much are you guys paying for the other brands

Royal Purple is what I use in everything.

I assume that "Royal Purple" is the OEM dealer oil?

Royal Purple is a great oil! Expensive!!


I use Rotella 15w-40.

Delo 400 15 w 40