Went to see the inlaws this weekend and found the napakool stocked in their local store. Now it says safe to add to the normal green stuff but what I'm wondering is if I can add it to the Prestone pre 50/50 mix or if I have to mix my coolant myself. The prestone 50/50 says it is safe to add to all colors of antifreeze. If I shouldn't add to the 50/50 then what would you guys suggest?
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1989 F250 single cab 2WD
7.3 IDI with 150,000 miles
Single Straight Exhaust with 4" Chrome Tip
No Soupbowl
E40D
LT 265/75/16 Yokohama AT's on 16x7's
Factory Hubcaps
Gooseneck hitch
Homade rear pipe bumper with built in utility-lights and D-rings
Diamond Plate Aluminum Toolbox
Tinted Windows
Future mods: Roof Markers and front pipe bumper
1997 F250 Extended cab 4x4
PowerStroke Diesel, E40D, Manual Hubs
All Stock Except Exhaust - No Cat, 18" Glasspack
NAPA Kool is the right stuff anyway. It is DCA2 which is the older formula, more sensitive to over concentration but I like it, and use it. As for the antifreeze I don't know for sure but so long as it is low silicate it should be fine.
i keep the napakool around.. why?? almost every napa in the world has it in stock. plus they offer test strips a whole lot cheaper than anyone else.. i buy my 50 packs from my napa for 7.99. this is a great price when you are using 25-30 a week.. plus Napakool is cheap by the 2.5 and 5 gallon setup..
Also...Napakool and Wixcool are the same product. i have a 5gal jug of the stuff. think I paid $95 for it.
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86 f250 6.9IDI, 4spd 4X4 "the runt"
89 f450 rollback carrier 7.3IDI, ZF5, 4X2(in memory of...)
90 f450 conventional towtruck 60"CA 7.3IDI, E4OD, 4X2
92 f350 CC 7.3IDI, ATSturbo*intercooled*, ZF5, hydrostop, 4X2 "the nebuchadnezzar"
...Quack Quack................*P.A.K.*...
red pill or the blue pill? make your choice and pm me. 7/03 mini meet pics
I also like it because it is the same stuff as is in Fleet Charge which is what I use, and I can top it up if necessary. Also it is phosphate free which is required by some engines. As opposed to DCA4 (Cummins, International, Ford) stuff which uses phosphate as a component.
but is napakool the diesel coolant from napa? I always have went with the stuff from international. Can somebody inform me?
It is about time for me to do my yearly flush. If the stuff is cheaper and does the same, without phosphates(from what i know, precipitate, and electrolyte) I will be happy to change to it, nonetheless i would spare the 50 miles drive to local IH dealer, for something i can get local, 2 mile drive.
Frankly, i dont know the diff between SCAs and DCAs, except for abreviated intials. I have always played it safe and went with the IH suggestion, with their test strips, however i feel they want too much for their stuff. On top of that a 50 mile drive.
I know the coolant needs to be watched like a hawk on these engines, i have maintained accordingly with the strips, and a yearly flush to eliminate contaminates from engine and cooling systems.
Once again sorry to try and hijack the post, but am curoius
Reply to OP before me
TIA
--Ryan
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91 f-350, dually, 7.3 diesel. 2wd, 4.10 gears LS. E4OD. New injectors, lift pump, and fuel filter at current 85,000 miles. Autometer pyro and fuel turned up. 3" exhaust with walker "btm" muffler http://community.webshots.com/user/olivera_149
There are two formulas out there, the original, apparently developed first for Detroit Diesel called DCA2 and the new one which Cummins, International, and Ford seem to prefer, called DCA4. They are additives not coolants. From memory, DCA2 uses borate as a pH buffer, and nitrite alone as an inhibitor. DCA4 uses phosphate as a pH buffer, and both nitrite and molybdate as inhibitors which interact according to some matrix so they have to use less of both, so the system is not as sensitive to overcharging.
SCA is a generic term for anything that prevents cylinder wall cavitation. DCAx refers to the specific formulation being used.
WixCool, NAPA Kool, Penray, Nalcool, and a few others are DCA2. Also found in Fleet Charge antifreeze premixed.
Ford's I think is called VC8, and International and Cummins also have it, DCA4.
For my money I use DCA2. Keeps the fleet standard.
Back to the original question here.....What would the suggested coolant be to use with the NapaKool additive?
__________________
1989 F250 single cab 2WD
7.3 IDI with 150,000 miles
Single Straight Exhaust with 4" Chrome Tip
No Soupbowl
E40D
LT 265/75/16 Yokohama AT's on 16x7's
Factory Hubcaps
Gooseneck hitch
Homade rear pipe bumper with built in utility-lights and D-rings
Diamond Plate Aluminum Toolbox
Tinted Windows
Future mods: Roof Markers and front pipe bumper
1997 F250 Extended cab 4x4
PowerStroke Diesel, E40D, Manual Hubs
All Stock Except Exhaust - No Cat, 18" Glasspack
the regular green stuff. I would not do the 50/50 b/c your ratio will be off. You can't get system completely empty so the best bet is to flush the sytem with distilled water until it runs clear. then add the straight antifreeze until you get the desired ratio, also using more distilled water. Prestone or Peak are good choices
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are these different additives compatible? I used the ford stuff originally so can i top off with napacool? I am guessing no
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you would be correct. and no on using the napa-wix test strips with the Ford SCA. you need to purchase the fleetgaurd test strips. like i said before, i use the Napa-Wix stuff for three real reasons. price, availability, and test strip pricing..
Frankly, i dont know the diff between SCAs and DCAs, except for abreviated intials. I have always played it safe and went with the IH suggestion, with their test strips, however i feel they want too much for their stuff. On top of that a 50 mile drive.
I know the coolant needs to be watched like a hawk on these engines, i have maintained accordingly with the strips, and a yearly flush to eliminate contaminates from engine and cooling systems.
--Ryan
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Lots of good common sense questions here. I didn't know there is a difference between this additive and antifreeze. Nor have I ever flushed my truck system. I m afraid right now that I won't put in the right stuff. Can someone break this down a bit more and tell me exactly what I need to purchase. Brands be dam,
thank you
B.
90 F250 4x4 7.3
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04 F350 CC LB Lariat 3.73 FX4 pw moon slider wht/grey Auto. SnugTop, bedrug 9K miles.
The TOTAL PKG: For Sale 1990 F250 Two-Tone Blue N Silver, SC LB 4x4 Auto 4.11, 51K motor #2. 144K total. 5 core radiator, oil and tranie coolers, Eclipse sound system 2 10" subs, Zapco Amp, 8 disc changer, mids, tweeds(no back seat) Capt chairs [img]/ubbthreads/images/graemlins/cool.gif[/img] 03 Ford E-350 alloy rims, Revos, Gemtop Workmaster shell, double bed drawers, [img]/ubbthreads/images/graemlins/smile.gif[/img]
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are these different additives compatible? I used the ford stuff originally so can i top off with napacool? I am guessing no
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you would be correct. and no on using the napa-wix test strips with the Ford SCA. you need to purchase the fleetgaurd test strips. like i said before, i use the Napa-Wix stuff for three real reasons. price, availability, and test strip pricing..
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Thanks Husky. If i want to change from the Ford SCA to the Napa then I suspect i need to do a complete flush of the system. Where can I get the Fleetgaurd strips??
Fleetguard strips can be had at any good truck shop such as an IH or Cat dealer. Cummins too, since they actually own fleetguard, but if you want to switch to the NapaKool syle DCA2 type coolant which is nitrite only as is the CAT stuff, just order a bottle at NAPA. these strips test for nitrite(DCA-2/NAPAKOOL/CAT additive), freezepoint, and pH. ANd they are a heck of a lot cheaper than the fleetguard stuff.
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J.D.'s Fords: 1986 F-250 6.9 diesel Solid State Glow Plug System 3.55 gears C-6 2WD 178,960 miles.... it still runs pretty good!
Wishlist H-max turbo, T19 tranny,
1989 Ford Ranger ga$$er, non runner, soon to be donated or scrapped!
Welder and jdw.. Just use the Napakool (or Wixkool)additive + the low silicate anti freeze from Napa + the Napa test strips. It's a one stop visit thing to your local Napa store. And, be sure to get distilled water from your local super market. Do all that and you're good to go.... Al
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1991 F-350 XLT Lariat 4x4. Metallic Midnight Blue over Silver Gray.. Canadian Made. Now has 82000 miles. Std Cab SRW-7.3 With a Banks Stinger Kit. ZF-5 speed- 4:10. Five rear overload springs rated at 3000 lbs, Smitty Built side step tubes, mounted to frame with 1/2 " steel plate.. SteelHead sliding rear bumper. SteelHorse overhead panel with a Cobra 25. Dash mounted compass and altimeter, pillar mounted Banks pyrometer. 11.5 FT camper in the bed 99% of the time. Camper has been restored all the way out from it's frame. Camper has two #30 batteries, good for a week dry camping in the woods..
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