Reddit reviews Genuine GM (12378255) Fluid 3634621 Cooling System Seal Tablet - 4 Grams, (Pack of 5)
We found 2 Reddit comments about Genuine GM (12378255) Fluid 3634621 Cooling System Seal Tablet - 4 Grams, (Pack of 5). Here are the top ones, ranked by their Reddit score.
Non-toxicDEX-COOL compatibleEngine application is based on liters of volume in cooling systemFormulated for automotive useFor use with all vehicles
My Saab has a known issue with poorly made metals on the tips of the valves.
It's a known issue. I didn't know about it, HE didn't know about it even though he's a master tech and his shop is well established.
Quoted me $1700 to take apart my entire engine, this is a $3k job. Coolant kept leaking into the block. He took it apart 2 more times, for free, because he felt bad that he didn't do a good job. Turns out I had a porous block, not uncommon, but it doesn't really affect the Saab engine, it'll still go like hell once it's sealed.
I did some online research and found AC Delco leak tabs for like $7. I said "Hey man, lets give it a shot!"
My car has been flawless, and I drive 150mi/day for work, my engine is just as good as it's ever been, I'm approaching 100k/mi and it's smooth as silk.
This guy took it apart 3 times to try to fix an issue he never heard about, fixed the issue once I figured out what it was, and my car is still solid as a rock.
My mechanic is a hell of a guy.
EDIT: I work in IT, you can spend over a decade doing IT/troubleshooting but that doesn't mean something comes across your desk you haven't heard about. My mech was sincere and really cared about his shop, his reputation, and his customers. He's a hell of a guy.
Add a couple of these when its cold. They are used regularly to delay fixing small internal leaks. Likely the start of a head-gasket failure. Can be purchased local i assume also.
https://www.amazon.ca/ACDelco-Cooling-System-Tablets-grams/dp/B000QIH3C4