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#4528016 - 09/27/17 11:11 PM OIL FOR 1969 CAT D333?
Cat12f Offline


Registered: 09/27/17
Posts: 4
Loc: OKLAHOMA
I just bought a really clean 1969 cat motor grader with a D333 motor. Any suggestions for motor oil? I run mystic 15w-40 syn blend in my 2015 power stroke and also in my 2015 Case 580 Super N backhoe which both were bought new but I don't know much about the new oil goin in the older machines

Appreciate any comments

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#4528025 - 09/27/17 11:27 PM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
BrocLuno Offline


Registered: 09/06/15
Posts: 5512
Loc: Kalifornia Kollective
I'll bet it calls for SAE 30 HD ... Not sure, but all the older CAT's I've worked on want that smile
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4528046 - 09/28/17 12:18 AM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
RedOakRanch Offline


Registered: 11/10/13
Posts: 846
Loc: Central Coast California
My dad has an operators manual in his truck. Off the top of my head it is SAE30, and if it's really cold it gives advice on mixing kerosine to thin it out!
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1994 Ford Crown Vic 206k-Frankenbrew 0w20,30,40!
2005 Chevy 1500 Crewcab 4X4 178k-BC 0w30 $2/qt
2016 Outback 2.5 Limited 56k-M1 EP 0w20 $2/qt

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#4528152 - 09/28/17 06:38 AM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
skyactiv Offline


Registered: 03/02/13
Posts: 4394
Loc: The Midwest
Shell Rotella T5 10W30 will provide start up protection you need and is better than any 30W from 40+ years ago.
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#4528173 - 09/28/17 07:21 AM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
Chris142 Offline


Registered: 06/05/03
Posts: 16817
Loc: Deplorable in apple valley, ca
I ran 15w40 in my 62 pete with its 1962 cummins. Uoa showed it worked well
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#4528265 - 09/28/17 09:17 AM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
CT8 Offline


Registered: 10/09/14
Posts: 10946
Loc: Idaho
30 = 15W-40
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#4528404 - 09/28/17 12:15 PM Re: OIL FOR 1969 CAT D333? [Re: CT8]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: CT8
30 = 15W-40


Pretty much.

Any cheap 15W-40 now is better oil than what was available 40-50 years ago.
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#4528635 - 09/28/17 05:33 PM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
Cat12f Offline


Registered: 09/27/17
Posts: 4
Loc: OKLAHOMA
Since im not sure what oil was used in my grader previously Any reason I shouldn't convert to mystic 15-40 synthetic blend ? No worries of new oil consumption ?
I'm kinda old school and I was made to believe switching oil could cause oil consumption.

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#4532285 - 10/02/17 07:02 PM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
CT8 Offline


Registered: 10/09/14
Posts: 10946
Loc: Idaho
What would the oil used before your ownership have to do with anything since 1960 the grader has had more different oils than a horse has had shoes.
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"Don't let your preconceived notions get in the way of facts."
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#4539182 - 10/10/17 02:34 PM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
Fraser434 Offline


Registered: 09/17/11
Posts: 183
Loc: Chicago
Understand this engine was produced well before 15W40 was available. I would recommend using SAE 40 oil if you don't need to do cold starting.


Edited by Fraser434 (10/10/17 02:47 PM)

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#4540466 - 10/11/17 05:58 PM Re: OIL FOR 1969 CAT D333? [Re: Linctex]
BrocLuno Offline


Registered: 09/06/15
Posts: 5512
Loc: Kalifornia Kollective
Originally Posted By: Linctex
Originally Posted By: CT8
30 = 15W-40


Pretty much.

Any cheap 15W-40 now is better oil than what was available 40-50 years ago.


There are plenty of modern SAE 30 and SAE 40 grades out there. No VII's to shear down and they lube very well. There are some engines that will tear up any multi grade, so they are recommended for mono's only.

Just becasue it's a mono, does not mean it is "40 years old" ...
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4547124 - 10/18/17 11:56 AM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
DWC28 Offline


Registered: 07/31/03
Posts: 207
Loc: Houston, TX
Originally Posted By: Cat12f
I just bought a really clean 1969 cat motor grader with a D333 motor. Any suggestions for motor oil? I run mystic 15w-40 syn blend in my 2015 power stroke and also in my 2015 Case 580 Super N backhoe which both were bought new but I don't know much about the new oil goin in the older machines

Appreciate any comments

Your current 15W-40 will work good or better than the SAE 30. The oil quality has gotten better and there was a reason that Cat switched from 30 to 15W-40, better cold weather, better hot weather.

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#4691959 - 03/11/18 09:52 PM Re: OIL FOR 1969 CAT D333? [Re: Cat12f]
NYEngineer Offline


Registered: 12/12/06
Posts: 1569
Loc: NY, NY
I fixed a lot of D333s between 1984 and 2003. All of the older cats used 30 wt. I care for four 3516s now and they take 15-40 Rotella. I wouldn't be afraid to run 15-40 in the 333 but you may want to check the condition of a rod and a main bearing before changing oils. I fixed mostly generator sets so it was easy to open a side cover for a peek inside. May be less easy in an earth mover.

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