Gents,This spring I drained my antifreeze and the color was rusty brown. (It was NAPA-green) So after searching "the barn" I decided to use the vinegar treatment. Sooo, I put in 2-1/2 gal. of vineger, drove it for about 50 miles over about 10 days, drained the system, poured the contents (a putrid foamy stinky mess) into a laundry tub--let it set overnight--and a crusty flacky floating layer was laying on top of the liquid (brown). I then drained off the fluid,leaving a pile of flaky granules as shown in pile #1 in the attachment. Soooo, I flushed the system with water and repeated the vinegar treatment. See pile #2--same process--same result!! Soooo, I repeated 2 more times see pile #3 & #4 with the same results. I was gaining by removing a lot of crud , but after 10 gallons of vinegar and 200 miles of driving and with no end in sight, I went back to "the barn" and found that some had used Evaporust-Thermocure so I tried that product. 1 guart of the product and 2 1/2 gal of water, 4 hours of driving over 10 days and it was time to drain the system.---2 1/2 gallons of the Blackest looking liquid I've ever seen--no grit just Black liquid. So according with the products instructions I flushed the system 4 times with water and WALA, clear water!!!
cooling system rust
- Thread starter jetrod
- Start date
Bob Johnson
Well-known member
Thermocure
I have used Thermocure on several radiators and it worked well for me. After the system is clean I use a rust inhibitor to keep the rust from coming back. I use Napa 1300.
Bob
I have used Thermocure on several radiators and it worked well for me. After the system is clean I use a rust inhibitor to keep the rust from coming back. I use Napa 1300.
Bob
Synchro909
Well-known member
After reading this, it seems to me that the Thermocure/ Evaporust combination is about the same as our liquid intelligence No 239 product. https://liquidintelligence.com.au/product/liquid-intelligence-239-engine-cooling-system-cleaning-kit. Prices quotes are Australian dollars, not US.
One is made here so it's cheaper here, the other is foreign made so it is more expensive here. I suspect the end results are very similar.
One is made here so it's cheaper here, the other is foreign made so it is more expensive here. I suspect the end results are very similar.
SHEC
Senior Member
Western US car it’s entire life… family owned since 1958 and purchased from
original owner. We have never used antifreeze (since 1958), and I have used Evaporust twice in the car - that still has its original radiator. Very pleased with result. As a further safeguard I use distilled water.
I drive it all year and it is always garaged at night. Both the vinegar and Evaporust techniques seem to give positive results. Happy Spring/Summer driving folks.
original owner. We have never used antifreeze (since 1958), and I have used Evaporust twice in the car - that still has its original radiator. Very pleased with result. As a further safeguard I use distilled water.
I drive it all year and it is always garaged at night. Both the vinegar and Evaporust techniques seem to give positive results. Happy Spring/Summer driving folks.