Bob Ayers
New Member
- Joined
- Aug 28, 2007
- Messages
- 2,274
- Reaction score
- 16
- Points
- 0
- Location
- Durham, NC
- Vehicle Year
- 1999
- Make / Model
- Ranger
- Transmission
- Automatic
From Prestone's Website:
Q. What is the best antifreeze/coolant concentration for a vehicle? Can I use 100% antifreeze?
A. We recommend that you use between a 50% and 70% concentration of antifreeze. At least 50% is necessary to give the adequate amount of corrosion protection, as well as freeze/boilover protection. However, we do not recommend more than 70% antifreeze. This would cause restriction of the heat transfer capabilities, corrosion protection, and freeze protection. The concentration of freeze/boilover protection of the antifreeze mixture can be checked using a Prestone® Antifreeze Coolant Tester.
If a 50/50 mixture wasn't the best, why do they sell it premixed this way? It's interesting that running 100% antifreeze limits corrosion, as well as freeze protection!
Big Jim, we will leave it up to you to tell Prestone they are wrong!! Tell them that their customers in Texas, and the Arab desert need to run 100%
Q. What is the best antifreeze/coolant concentration for a vehicle? Can I use 100% antifreeze?
A. We recommend that you use between a 50% and 70% concentration of antifreeze. At least 50% is necessary to give the adequate amount of corrosion protection, as well as freeze/boilover protection. However, we do not recommend more than 70% antifreeze. This would cause restriction of the heat transfer capabilities, corrosion protection, and freeze protection. The concentration of freeze/boilover protection of the antifreeze mixture can be checked using a Prestone® Antifreeze Coolant Tester.
If a 50/50 mixture wasn't the best, why do they sell it premixed this way? It's interesting that running 100% antifreeze limits corrosion, as well as freeze protection!
Big Jim, we will leave it up to you to tell Prestone they are wrong!! Tell them that their customers in Texas, and the Arab desert need to run 100%
Last edited: