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#4623876 - 01/04/18 01:46 PM
New formula Rotella (ck-4) for gas marine engines?
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Registered: 01/31/10
Posts: 107
Loc: ca
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I've been running the older formula (cj-4)Rotella 15w-40 in my 04 volvo 4.3gxi. It doesnt appear that the new ck-4 rated oil has a sn rating like the cj-4. Is it rated for gasonline engines? Mire importantly, is it ok to run in marine engines?
Thanks
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#4623916 - 01/04/18 02:19 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 09/06/15
Posts: 5243
Loc: Kalifornia Kollective
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A lot of marine engines are flat tappet cams. Best to have >800 PPM ZDDP. So it's a searching game to find the HDEO with the right numbers.
Off the top of my head, I'd go with Delo 15W-30 SD (severe duty) as the go-to oil for a while. It's very well respected and has >1,000 PPM ZDDP and a food add pak. You motor should be fine on 30 at op temp unless it has a zillion hours on it ...
_________________________
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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#4623972 - 01/04/18 03:06 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: BrocLuno]
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Registered: 02/16/09
Posts: 1463
Loc: wv
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A lot of marine engines are flat tappet cams. Best to have >800 PPM ZDDP. So it's a searching game to find the HDEO with the right numbers.
Off the top of my head, I'd go with Delo 15W-30 SD (severe duty) as the go-to oil for a while. It's very well respected and has >1,000 PPM ZDDP and a food add pak. You motor should be fine on 30 at op temp unless it has a zillion hours on it ... Here is Chevron 15w30SD ran in a lexus UOA https://bobistheoilguy.com/forums/ubbthreads.php/topics/4528999/1Here is a side by side VOA of Rotella 5w40 beloved by all for 4 strokes.. CJ vs CK https://bobistheoilguy.com/forums/ubbthr...SM_#Post4490450
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#4623976 - 01/04/18 03:11 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 12/31/16
Posts: 5731
Loc: Waco, TX
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a 2004 4.3 liter doesn't have a roller cam?!?!
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"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
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#4624031 - 01/04/18 04:02 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 03/18/08
Posts: 5460
Loc: South Florida
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It should have a roller cam.
The Rotella will be fine. It is no longer gas rated, BUT, it will be fine.
_________________________
17 Chrysler Pacifica QS syn 0W20
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 ST syn 5W20
06 GMC Sierra Nextgen 10W30
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#4624097 - 01/04/18 05:11 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 01/31/10
Posts: 107
Loc: ca
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That is correct. It has a roller cam.
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#4624148 - 01/04/18 06:03 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 01/31/10
Posts: 107
Loc: ca
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I guess I could switch to T6 5w-40. It's still gasoline rated.
Edited by monster1 (01/04/18 06:04 PM)
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#4624176 - 01/04/18 06:30 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 05/21/12
Posts: 5227
Loc: Fort Lauderdale, FL
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A lot of this "gas rating" is due to additive level limits to protect catalytic converters. There is nothing in there that will hurt your engine. You have no catalytic converters.
Dump it in, and enjoy.
That's a roller engine for 100% certain.
Stick with a 40 oil. VP stopped using and recommending 30s in that engine for a reason.
If your engine does not have an oil cooler, then definitely stay away from 30. Oil gets nuclear hot in those engines under load.....fast.
_________________________
07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
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#4624186 - 01/04/18 06:52 PM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 01/16/06
Posts: 957
Loc: Ruidoso, NM USA
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I guess I could switch to T6 5w-40. It's still gasoline rated. Nope!
_________________________
2009 Honda CR-V
2011 BMW R1200R
2005 Kaw Ninja 250
1994 Jeep Wrangler 2.5L
2016 Chevy SS Sport Sedan
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#4625519 - 01/06/18 01:24 AM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: ammolab]
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Registered: 01/31/10
Posts: 107
Loc: ca
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They must not have changed the info on the website. Oh well. I'll just keep running this or chevron. Whatever is on sale.
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#4625839 - 01/06/18 11:45 AM
Re: New formula Rotella (ck-4) for gas marine engines?
[Re: monster1]
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Registered: 05/17/06
Posts: 3931
Loc: Central Wisconsin
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I doubt the formula has changed enough to worry about.
The change was the 'rating' over pressure by the government
and MFGs not wanting anything that might foul the converters.
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There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
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