SOHC 11,787 Posted June 8 Report Share Posted June 8 What’s a good antifreeze/ antiboil and rust inhibitor for very old cars? I have been using that radiator technology shit mixed at 75% as this stoped it pushing coolent out the overflow when the engine is turned off but it had crappy rust inhibitor, is for my ford witch holds 20L, it use to be a non pressure system but I have fitted a 4 or a 7 pound cap. Quote Link to post Share on other sites
kws 4,990 Posted June 8 Report Share Posted June 8 I've seen a few guys with older cars like that run the Penrite coolant. It's an inhibitor but not an anti-freeze, designed for old cooling systems. https://www.penriteoil.com.au/products/classic-car-coolant-concentrate None of my cars are that old though so I have no direct experience. Quote Link to post Share on other sites
SOHC 11,787 Posted June 8 Author Report Share Posted June 8 53 minutes ago, kws said: I've seen a few guys with older cars like that run the Penrite coolant. It's an inhibitor but not an anti-freeze, designed for old cooling systems. https://www.penriteoil.com.au/products/classic-car-coolant-concentrate None of my cars are that old though so I have no direct experience. It’s not anti boil to witch is a problem, I live in some mountains where it dose freeze during the winter Quote Link to post Share on other sites
datlow 23,293 Posted June 8 Report Share Posted June 8 Can you buy this in nz/ anyone used it? https://www.evanscoolant.com/blog/no-water-makes-all-the-difference/ Quote Link to post Share on other sites
Scrubb 184 Posted Thursday at 03:50 Report Share Posted Thursday at 03:50 On 09/06/2021 at 08:59, datlow said: Can you buy this in nz/ anyone used it? https://www.evanscoolant.com/blog/no-water-makes-all-the-difference/ I've been wanting to run some sort of waterless coolant for years but haven't seen anywhere selling it. I'll be keen to know if someone knows where to get it. Quote Link to post Share on other sites
Corbie 3,970 Posted Thursday at 03:52 Report Share Posted Thursday at 03:52 http://gssperformance.co.nz/categories/evans-waterless-coolant/evans-waterless-coolant Quote Link to post Share on other sites
SOHC 11,787 Posted Thursday at 06:53 Author Report Share Posted Thursday at 06:53 It would cost over $400 to fill my cooling system with waterless 1 Quote Link to post Share on other sites
Hemi 12,166 Posted Thursday at 07:02 Report Share Posted Thursday at 07:02 IM not sure why this is a big deal? coolants these days are pretty damn good for all applications. running 75% is silly, water is a far better conductor of heat. the 50-50 distilled water is fine. Choose your brand . and be done with it 4 Quote Link to post Share on other sites
ajg193 10,047 Posted Thursday at 07:39 Report Share Posted Thursday at 07:39 And as long as you keep the oxygen out, it shouldn't corrode for a right long time. Probably also helps to run the engine somewhat regularly so nothing stagnates in one place. Most new coolants are rated for like 7 years these days. Usually you would just do 30% coolant though? 1 Quote Link to post Share on other sites
Muncie 11,476 Posted Thursday at 09:25 Report Share Posted Thursday at 09:25 I used to run genuine Toyota coolant in my Triumph seemed to work nice no sign of rust after 18 months on. (The red stuff) I did get given 50 litres of the stuff for doing work experience as a teenager there and the triumph so i am a bit biased. 2 Quote Link to post Share on other sites
SOHC 11,787 Posted Friday at 09:59 Author Report Share Posted Friday at 09:59 Lots of people have sed to me use branded shit like castrol and never use anything like SCA branded coolent or brake fluid as it’s shitty Quote Link to post Share on other sites
GuyWithAviators 10,164 Posted Friday at 10:24 Report Share Posted Friday at 10:24 24 minutes ago, SOHC said: Lots of people have sed to me use branded shit like castrol and never use anything like SCA branded coolent or brake fluid as it’s shitty Doesn’t apply to every product but read the labels next time and check out who actually makes it. 4 Quote Link to post Share on other sites
tortron 69,116 Posted Friday at 21:00 Report Share Posted Friday at 21:00 On 10/06/2021 at 19:39, ajg193 said: And as long as you keep the oxygen out, it shouldn't corrode for a right long time. radiator cap is basically open to the environment on these, its just a cap to keep water from sloshing out/mice from drowning i just use that nulon long life green in my stuff Rudi. Morrie has had some in there for 5 years and its still bright green. commer i just ran straight water with a little oil and seemed to be fine (cos i filled what i thought was a clean jerry can up with water. turns out i had 2 identical ones but one with 500ml of oil in it lol), but i was running it every day and then draining it when it wasnt getting used for more than a few weeks Quote Link to post Share on other sites
RUNAMUCK 30,984 Posted Friday at 22:42 Report Share Posted Friday at 22:42 Life hack, If you're selling a car with a mega rusty cooling system, dump a couple of bottles of green food colouring into the cooling system. It goes bright green, and is way cheaper than proper anti freeze............ *I've never done it personally, But a friend to whom I'd suggested it did. He said the buyer bought a "knows all about cars" older person with them. Who commented the coolant looked quite new. Lololololol. /I'll see myself out. 5 1 Quote Link to post Share on other sites
87creepin 306 Posted 22 hours ago Report Share Posted 22 hours ago On 11/06/2021 at 21:59, SOHC said: Lots of people have sed to me use branded shit like castrol and never use anything like SCA branded coolent or brake fluid as it’s shitty when i worked at ripco the then-manager told me repco oils etc are pretty much made by penrite or whatever australian company to meet whatever standard repco specify. I've used repco brand coolant just cos it was cheap as hell with no issues. Would not use their oil though as decent name brand meets more standards stuff is only a few dollars extra. whatever you do use just flush the radiator out and get out as much of the old crud as you can. 1 Quote Link to post Share on other sites
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