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10-05-2019, 08:12 AM | #1 |
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ROTELLA 15W 40 Oil
Costco has the Rotella 15W 40 on sale for $10 a gallon. It comes in a three gallon package-$29.99.
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10-05-2019, 08:53 AM | #2 |
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Re: ROTELLA 15W 40 Oil
Keeps the truckers happy too. Big diesels need a lot of oil.
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10-05-2019, 11:11 AM | #3 |
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Re: ROTELLA 15W 40 Oil
That is for diesel engines, not recommended by oil companies for gasoline engines.
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10-05-2019, 11:14 AM | #4 |
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Re: ROTELLA 15W 40 Oil
Why not use it in gasoline engines, Jim? I suspect oil companies of a simple marketing ploy - but happy to be proved wrong(!)
Last edited by johnbuckley; 10-05-2019 at 11:32 AM. |
10-05-2019, 11:59 AM | #5 | |
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Re: ROTELLA 15W 40 Oil
Quote:
Rotella diesel oil should never be used in modern cars with catalytic converters and exhaust sensors as zinc/etc damages those components. From what I have read, Diesel oil is OK for our older cars, and the zinc may be beneficial. My reading also indicates that modern low Zinc oils are OK to use in older cars since they are formulated with different ingredients as a replacement for Zinc. My opinion, hope this does not start teh great oil/zinc debates again. |
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10-05-2019, 01:12 PM | #6 |
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Re: ROTELLA 15W 40 Oil
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10-11-2019, 07:14 AM | #7 |
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Re: ROTELLA 15W 40 Oil
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10-05-2019, 11:30 AM | #8 |
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Re: ROTELLA 15W 40 Oil
That is what I use in my A. Been running it for about 12 years.
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10-05-2019, 01:17 PM | #9 |
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Re: ROTELLA 15W 40 Oil
I use synthetic 15-40 have forever
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10-05-2019, 02:06 PM | #10 |
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Re: ROTELLA 15W 40 Oil
Superior shear,load and detergent factor. You can get a low ash spec if you want to run it in a modern car,later diesels use a DPF,subject to the same problems as modern cars using earlier versions of diesel grade engine oil.
Shear factor resists wiping effect of piston rings and cam lifter contact. Load factor is the ability of the oil to handle pressure of rod and main bearings and cam bores. High detergent factor means debris stay suspended in the oil instead of depositing on the parts,resulting in a cleaner engine and no sludge. |
10-05-2019, 02:12 PM | #11 |
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Re: ROTELLA 15W 40 Oil
Hallo!
"Rotella" oils are some of the few engine oils Shell manufactures specifically for diesel fuels. Unlike the same 15W/40 shell oil for gasoline engines, Rotella blends contain an increased proportion of high pressure additives, other cleaning additives, and less corrosion inhibitor / TBN neutralizer. It's no problem to use Rotella in old-fashioned petrol engines. But there are no benefits. On the contrary. This results in more combustion residues and the lower corrosion protection / antixidants require shorter replacement intervals.
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10-06-2019, 01:57 PM | #12 | |
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Re: ROTELLA 15W 40 Oil
Quote:
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10-06-2019, 02:38 PM | #13 |
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Re: ROTELLA 15W 40 Oil
That's an air filter !! ??
I'd be asking Jim Brierley for suggestions to improve that. |
10-06-2019, 03:35 PM | #14 |
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Re: ROTELLA 15W 40 Oil
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10-06-2019, 04:16 PM | #15 |
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Re: ROTELLA 15W 40 Oil
Jim Brierley is the performance guru of the Model A having successfully 'run them' at Bonneville.
A stock era Air Maze on a stock Model A has been proven to actually restrict air flow thru a stock A carburetor. From your photo you have a lot of performance breathing going on from headers, trick intake manifold, and a perfectly adequate Stromberg....all to be choked by possibly too small a flowing air cleaner. Just a suggestion.....but excuse me, all this has nothing to do with motor oil. |
10-05-2019, 06:20 PM | #16 |
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Re: ROTELLA 15W 40 Oil
I've used Rotella 15w40 in some of my model A's with no problem . I figure the 15 is a bit thin . I use Walmart 20W50 I figure that the 50 will better cushion the bearings on an eighty eight year old engine . I also use it in the professional rebuilt engine in another of my model A's .
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10-10-2019, 03:16 PM | #17 | |
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Re: ROTELLA 15W 40 Oil
Quote:
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10-10-2019, 04:10 PM | #18 | |
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Re: ROTELLA 15W 40 Oil
Quote:
No harm meant , I know that with multi viscosity oils that the only time that the low number is used is when the oil is cold . Thin oil flows quicker .Usually a cold engine will have more clearance than a hot engine and can be subject to knocks at start up . It doesn't get very cold where I live . I would prefer 20W for cold flow here .. Quick flow isn't the only thing that is important . I feel that more viscosity to a point will better cushion the bearings . The owners manual recommends 20W in winter and 40W in summer . 20W 40 would be ideal . I feel that 50w would be good for older engines with some wear . I feel that most engines over 85 years old will have some wear unless they have been rebuilt recently . I use 20W50 and it seems to work well for me . |
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10-05-2019, 06:29 PM | #19 |
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Re: ROTELLA 15W 40 Oil
I use Rotella 15w40 in my engine. In Alaska's colder climate I don't think the 15 is too thin as it would be in a much warmer Alabama.
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10-06-2019, 08:53 AM | #20 |
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Re: ROTELLA 15W 40 Oil
[QUOTE=CarlG;1806707]I use Rotella 15w40 in my engine. In Alaska's colder climate I don't think the 15 is too thin as it would be in a much warmer Alabama.[/QUOTE
]I agree . |
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