Prestone Coolant Tester: Is this any good? : r/MechanicAdvice
![Prestone Coolant Tester: Is this any good? : r/MechanicAdvice](https://i.redd.it/sr5v0nv0gmv71.jpg)
![](https://i.redd.it/odxbo63updb81.jpg)
2006 Toyota Sienna Coolant Spraying : r/MechanicAdvice
![](https://s3.amazonaws.com/aapa.image.store/PRODDIR009/e6f48335-9d32-4486-9d89-d3d1bb0fd33f.jpeg)
Prestone, Antifreeze/coolant tester 70795
![](https://images.oreillyauto.com/parts/img/extralarge/prs/af1420_p04_fro.jpg)
Prestone Antifreeze Tester AF1420
![](https://preview.redd.it/how-do-i-determine-rather-my-antifreeze-levels-are-enough-v0-sgf72h0nhiub1.jpeg?width=750&format=pjpg&auto=webp&s=d7675dc966c0b2fba88f7c6e2dc1977c8676d9df)
How do I determine rather my antifreeze levels are enough before winter starts to hit? : r/MechanicAdvice
![](https://i.ebayimg.com/images/g/R~MAAOSwAwRkwDdM/s-l400.jpg)
Prestone ALL Coolant ANTIFREEZE TESTER Radiator HYDROMETER dex cool peak AF-1420
![](https://images-na.ssl-images-amazon.com/images/I/51ASGPPKbzL._AC_UL600_SR600,600_.jpg)
Prestone AF-1420-6PK Antifreeze/Coolant Tester, (Pack of 6) : Everything Else
![](https://i.redd.it/does-this-look-milky-to-you-guys-coolant-keeps-disappearing-v0-2likkmf36pna1.jpg?width=3060&format=pjpg&auto=webp&s=9adf18097975acad3306ec078bdcf4510a687f04)
Does this look milky to you guys ? Coolant keeps disappearing in my engine and I have to add about 1/4 gallon of coolant ever 3-4 days of normal driving. No leaks
![](https://i.redd.it/a0ujq2qt49p71.jpg)
Prestone Coolant Tester: Is this any good? : r/MechanicAdvice
Prestone ALL Coolant ANTIFREEZE TESTER Radiator HYDROMETER dex cool peak AF-1420
![](https://m.media-amazon.com/images/I/71AO5it-TgL._UC256,256_CACC,256,256_.jpg)
Customer reviews: Prestone AF-1420 Antifreeze/Coolant Tester
![](https://m.media-amazon.com/images/I/71rXQ5mCsYL._UX250_.jpg)
Prestone AF-1420 Antifreeze/Coolant Tester : Everything Else
![](https://mobileimages.lowes.com/product/converted/797496/797496004697.jpg)
Prestone Antifreeze Tester at