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Old 10-22-2010, 01:34 PM   #1
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330 HP Cummins?

I have a 2001 Gulf Stream Yellow Stone Country Club with a (330 horse Cummins) i'm told. I know nothing about this engine, is it a ISX,ISM,ISL... how do i find out,how much oil does it take,what's the part number for the oil and fuel filter. Any help would be appreciated.

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Old 10-22-2010, 03:49 PM   #2
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I've got the '98 300 Cummins ISC, yours should be the same just different fuel mapping. Very bulletproof engine, I know on mine it could be pumped up to 350hp by local Cummins shop. The same 8.3 was used many years.
I use the LF 9009 extended service oil filter by Fleetgaurd and it will take approx. 20-22 quarts of your favorite oil. I use Delo 400 15/40.
Fuel filters are FS 1242 primary, FS 1251 secondary. Also I use the WF 2075 water filter with 15DCA units for the cooling system. All of these filters are found at filterbarn.com with good prices and fast shipping.
Good Luck, Rick

1998 38' Dutch Star 3865
Spartan/C8.3-300/Allison 3060
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Old 10-22-2010, 05:37 PM   #3
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Thanks Rick, I had no idea it had so many filters, like so many people I know my way around a gas engine but not a diesel, thanks again.
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Old 10-22-2010, 06:30 PM   #4
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In the list of filters that RicksDP pointed out you will see a water filter. This may be a surprise to you. This filter is of utmost importance, misunderstood by many, confusing to get right and there are many opinions which may or may not be right.
The best thing for you to do is go to a reputable CUMMINS dealer and have them check you SCA level in your coolant.
Basically if you have the ISC Cummins 8.3 liter it requires coolant additives which are dispensed into the coolant by leaching the additives out of the coolant filter. The SCA levels must be maintained between 1.5 and 3.0 on a scale that Cummins will use.
The SCA level is extremely important in that it puts down a layer of protection on the cylinders to guard against cavitation caused by the vibrations of piston firing and slap. Too little SCA and it doesn't provide protection, too much and it will start to gum up all the other components reducing the cooling system efficiency. You can buy the kit but if you are unfamiliar then it is not a wise investment. If the SCA reading is too low then a new filter filter with the proper amount of additives for the cooling capacity of the engine is required. If the reading is too high it must be monitored closely and if the SCA level starts to decline and comes between 1.5 and 3.0 then regular monitoring needs to occur. If the readings fail to decline then a smaller filter may be required.
Now the confusing part, there are some coolants that do not require the SCA additive and in fact the filter is a dummy with no additives in it. This is usually referred to as ES (extended service) coolant. This is where the expertise of Cummins comes in.
The other confusing part is that the ISB Cummins 5.9 liter does not require additives as it is built differently and does not have wet sleeves.
In trying to get to the end of this desertation I hope I have made the point that is often overlooked and can cause catastrophic failure if not monitored correctly. Again until you feel comfortable it's a cheap bit of insurance to have Cummins recommend what's right.
Just to make another point, I recently bought another kit from Cummins. I was unable to make any sense out of the readings. I wasn't too sure what the problem was. I then took a sample into Cummins and they immediately got good results with their kit. It turned out that even though the kit was not outdated somehow it had been ruined and would not give correct reading.
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Old 10-22-2010, 07:18 PM   #5
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I think Gomer said it the best, SCHAZAM !!! I guess I should go see a specialist first. Thanks Lyle
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