Oil change

Topic: Oil change (Read 1743 times) previous topic - next topic

Oil change

September 15, 2017, 02:19:43 pm

1st since purchase. Don't know what/when PO put in. Wanted Rotella T6 as that is what I use in everything else. Shop I bought from(along with filter) talked me into Shaffers synthetic-do I put it in?

Jim

Re: Oil change

Reply #1 – September 15, 2017, 02:24:00 pm

I use the Rotella in mine.
John M.

Re: Oil change

Reply #2 – September 15, 2017, 02:41:06 pm

Quote from: Jim Sizemore – September 15, 2017, 02:19:43 pm

1st since purchase. Don't know what/when PO put in. Wanted Rotella T6 as that is what I use in everything else. Shop I bought from(along with filter) talked me into Shaffers synthetic-do I put it in?

Jim

Great product! I have used a lot of it through the years

Re: Oil change

Reply #3 – September 15, 2017, 03:22:07 pm

Not sure if this deal is still available but if you're a Costco member check it out.

Delo .33 /gal Costco

Re: Oil change

Reply #4 – September 15, 2017, 04:10:32 pm

Schaeffer's is top of the heap stuff. My diesel mech likes it. Out performs Royal Purple which is excellent oil

Re: Oil change

Reply #5 – September 15, 2017, 04:47:20 pm

Many Amsoil users on the forum,will be changing mine after 22K miles,can post the oil sample when I get it back.What are the specs
on the Sheaffers?

Re: Oil change

Reply #6 – September 15, 2017, 05:59:29 pm

Schaeffers is some of the best stuff on earth. I use the 5w-50 S9000 in my motorcycles.

Re: Oil change

Reply #7 – September 15, 2017, 06:19:11 pm

I use Amsoil- have heard of Schaeffers but that is all. If the specs are good- PAO4 and diesel specific, should be fine to use. Do your homework....................

Re: Oil change

Reply #8 – September 15, 2017, 06:33:16 pm

Are we talking main engine oil?

Pierce

Re: Oil change

Reply #9 – September 16, 2017, 02:46:26 am

Pierce,yes as far as I can tell.

Re: Oil change

Reply #10 – September 16, 2017, 02:59:33 pm

I have been happy with Rotela T-6- 5w-40. I have it tested every year. Complete change out this year.

Re: Oil change

Reply #11 – September 16, 2017, 03:40:49 pm

If we didn't have the 2 cycle with it's special oil need, a synthetic oil would be a good choice. The price is around $30 a gallon for Mobile 1 Turbo Diesel Truck 5W-40 so we would spend roughly $165 for the 5.5 gallons. Not bad even buying an even 7 gallons for topping off. We use about a quart every 2000 so cost would not be a factor.

The big advantage is the synthetic won't coke so the turbo will last even with owner abuse high oil temp shutdowns.

On the other hand, Rotella/Delo does a great job and provides good service with only the need to cool the engine before shutting down after pulling medium to hard grades.

Pierce

Re: Oil change

Reply #12 – September 16, 2017, 04:42:52 pm

Extremely rare for "regular" diesel oil such as Shell Rotella T or Delo 400 to give any issues in DP's. Heck, this is what most OTR trucks use and they go a lot more miles than we do. Heck, how many "oil related failures" are reported here in a year?

Exception is the DD two strokes that do require special oil such as Delo 100 (not synthetic) but getting harder to find.

I do use synthetic in my gasoline vehicles and have since the late 1970's, but don't see the difference in large diesels.

Re: Oil change

Reply #13 – September 16, 2017, 04:54:39 pm

I have yet to put the Schaffers in my 8.3. Most likely would be ok. I use the t6 in everything else I have and just requested my son to pick me up 5gal of the Rotella. Will make me feel better and I guess that's what matters? I got to wondering about the friction modifiers in the Schaffers and know Honda doesn't want them used in my Valkyrie wet clutches. Is there anything in my 8.3 that wouldn't want that?

Jim

Re: Oil change

Reply #14 – September 16, 2017, 07:00:14 pm

Check the Cummins specs against the spec/rating of your favorite synthetic oil. Here is an example of a Cummins approved synthetic oil: https://www.cumminsfiltration.com/sites/default/files/pdf_archive/pdfs/product_lit/americas_brochures/CF-2296.pdf

Pierce

Re: Oil change

Reply #15 – September 17, 2017, 03:19:04 pm

Let's put this baby to bed, send me 5 gal of your favorite synthetic, and filters for a 3208. Also include two Blackstone test kits, and a fuel card with 600 gallons and I will do the testing for "free"

Re: Oil change

Reply #16 – September 17, 2017, 03:38:08 pm

Check above reply,when I get the sample back you can see the result,oil has 22k.Oil filters were changed at halfway mark.

Re: Oil change

Reply #17 – September 17, 2017, 06:46:10 pm

The difference between one million miles and 1.5 million miles from using better oil is a moot point.

Several drivers of our sc430 we also own have posted small puffs of oil smoke after startup after switching to full synthetic after 80k-100k miles.

Smoke went away after returning to conventional oils which I understand is 50/50 already.

3-400k miles reported on these exact engines in which the Lexus shop manual calls for conventional oil.

The engine specs that call for a non synthetic oil may be for a reason.

Re: Oil change

Reply #18 – September 17, 2017, 08:24:14 pm

Not to stir the porta potty, and i am sure the syn folks will chime in. I managed a fleet of 500 construction vehicles for 36 years, from autos to class 8 and every thing in between. Synthetics in all the rear ends, gear boxes, and manual transmissions (if approved). Over the years switched the light trucks( all GM) back and forth the older higher mile motors would develop small oil leaks from mainly front and rear seals. Change Back to regular Dino they dried up, talked to engineering at GM at length. We get 300,000+ out of GM motors. Point here is changing an older motor over may cause oil leaks, but the good news is change back leaks stop. JMHO oil and filters once a year is cheap insurance, old Shell Rotela T/ Delo good fer me.

Re: Oil change

Reply #19 – September 17, 2017, 08:45:43 pm

I'm sure I will stir up a hornets nest. When I had my loader business and 3 Cat 977's along with my Mack, I bought oil from a local supplier here in Los Angels named Rosemead Oil. I bought a product called Coronation oil, read re-claimed oil. Bought it by the 55 gal. barrel. They claimed that after re- refining it and adding what ever new additives were being required by Cat. that it was as good as any name brand oil. I never had any oil related problems. When I went in the crane business and didn't need the large quantities of oil I switched to Delo as Costco had it cheaper than the Coronation oil in small quantities. The barrels always had the newest spec. stamped on them.

Re: Oil change

Reply #20 – September 17, 2017, 09:11:21 pm

Up until about 10 years ago, ships and workboats would save all their used oil from oil changes in tanks onboard the vessel.
When they got into a US port, trucks would come down and pump off all the used oil and pay 25 cents per gallon, and provide drinking money for the crew. The truck drivers would take the used oil to a facility that would run it through centrifuges and filters and and separators then resell it. Due to changing regulations and the chance of carcinogens in some oil, the ships now have to pay someone to take away their used oil.

Re: Oil change

Reply #21 – September 17, 2017, 10:25:24 pm

Re, oil and smoke.
All I know is since changing to syn amsoil my coach did not start smoking or leaking but runs good is cooler and I get around 20k miles on a changeand the bottom line is it does not cost me any more than using reg oil and changing it 3 times. My analysis came back perfect and a comment that keep the oil and monitor it in 6 months again.
I do not worry what anyone else uses or thinks as most of comments are negative on synthetic anyway. Our coach runs nicely so I keep doing it. The rear end is synthetic and tranny is Amsoil syn too and all is good.
JohnH

Re: Oil change

Reply #22 – September 18, 2017, 01:19:27 am

John,

Not too many negative comments by people in the business. Race cars are using synthetic oils throughout the world. This is why you see NASCAR race cars that have blown all the coolant out, still run the last few laps and even win. It's just a better lubricant. Old wive's tales die hard. I would love to go 20K between changes and the cost would be the same or slightly less. All of our personal cars are synthetic. Changed the U300 generator to synthetic and am hoping it cuts the high altitude smell down if we use it. Chain saws are using OEM synthetic now too.

Pierce

Re: Oil change

Reply #23 – September 18, 2017, 01:53:59 am

The seal leaking and seeping happened a little when some of these synthetics first came out.One misconception is the synthetics
are usually clumped into one catagory,that's like saying all non synthetics are the same.Problems usually happened when the
wrong oil weight was used,use the weight your vehicle calls for.Another comment is,"my mechanic dos'nt recommend it"if the
mechanic has never used it he knows nothing about it.Can't explain the oil smoke Catflash but was the oil the same exact weight
or different weight?Some of the older Lexus cars had engines that were just in a Lexus but some of the newer engines are the
same engines in a Toyota,maybe tuned a little but the same engine.

Re: Oil change

Reply #24 – September 18, 2017, 03:39:01 am

Quote from: Caflashbob – September 17, 2017, 06:46:10 pm

The difference between one million miles and 1.5 million miles from using better oil is a moot point.

Several drivers of our sc430 we also own have posted small puffs of oil smoke after startup after switching to full synthetic after 80k-100k miles.

Smoke went away after returning to conventional oils which I understand is 50/50 already.

3-400k miles reported on these exact engines in which the Lexus shop manual calls for conventional oil.

The engine specs that call for a non synthetic oil may be for a reason.

I have always run synthetic in all my cars and engines (after break in ) I have a Lexus LS 430 same engine as yours, never a leak.
I run synthetic for its cold weather properties of not thickening like dino oil on cold days. Cold start flow is the main reason I use the synthetic. Like Jon H has mentioned, I run a test on the T-6 in the Foretravel every year after 3 years regardless I change it. So far so good. Same oil in the Generator and the steering box, power steering hydraulic circuit. On the cars I change yearly.

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