Do NOT EVER use stop leak or any other coolant leak sealer in any automobile engine. Ever. Go ahead and use it in old tractor engines or other equipment, but NEVER in an automobile.
It is a rock solid guarantee that it WILL plug up your heater core. And, since you are in Minnesota, that makes it doubly important not to use stop leak.
How do I know this? Because all of my friends that have used stop leak have been coming to me to get their heater cores flushed. Every winter. Some I have even had to replace the heater cores. What a job that is on most cars! Start by removing the entire instrument panel. Talk about a lot of fasteners! Then there are some that are right next to impossible to reach with a tool.
Nope, you guys with the stop leak solution apparently have never had to deal with the consequences of using that stuff.
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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