Keeping Your Car Cool in the Summer Heat
If you're not a fan of running in the heat, you'll still have to drive in it and 100-degree temps can be brutal on your car. You hear the usual, drink lots of water, don't leave kids or pets in the car and check on the elderly. Well, what about your car? You can't just drive it around in the summer heat and expect everything to be okay.
Take your tires. If they're a few years old or there's cracking because the weather has been extreme, cold in the winter and now it's really hot, the heat on the road will only make it worse. If you're driving and you feel the car pulling to one direction or the other, get your tires checked. Make sure the pressure is good because that will add to wear and tear, but don't forget to look under the hood. Driver Trey Weir says, "Under the hood? I don't look much under there." While driver Tena Edwards explains, "Well, the main thing is you got to keep the coolant in there and make sure you're keeping the oil changed." Discount Tire and Brake mechanic Eric Dunn says, "A while ago with some of the older cars, it was like a 70/30 mix as far as the anti-freeze but some of the newer stuff like dex-cool and everything, you can run it 50/50 and it'll have the perfect mixture for your vehicle."
Dunn says it's really simple. If you notice something wrong with your car, don't ignore it because this heat will only make it worse.
Coolant flush and Dexcool
I have Dexcool in a 1982 Ford E-350 Ambulance, a 1995 Honda Passport, and a 1987 RX-7 with a 1986 Pontiac 305 engine. (Also used it in my RX-7 rotary engine rally car) Never had a problem with Dexcool in the 10+ years I have been using it. (No leakages, no apparent corrosion, no blown H2O pumps, no head gasket problems - basically, I have had no problems like those I have read about when I google Dexcool). The early version of DexCool would jell in the system with nothing added. Many times you could pull the rad cap and see DexCool gummed or scummed around the cap spring. The S10s had quite a few heater cores plug around 30k. If caught early you could successfully flush them. If left too long the had to be replaced. The newer stuff hasn't shown that tendency so far. Another neat DexCool feature is it jells in the oil pan rather than turns milky like Green does. Chevy has a large problem with intakes leaking both externally and internally and some of the V8s have heads that crack around the rocker shafts (Castech made). The DexCool will actually jell in the bottom of the pan and plug the oil pickup tube with no foaming issue. It tends to blend right in with the oil in color and is nasty.
Zerex ZXEL1 DEX-COOL Antifreeze / Coolant – Gallon
New at Cars Car Wheels: Zerex ZXEL1 DEX-COOL Antifreeze / Coolant - Gallon 
Find discount Dex Cool Coolant Problems and Free Shipping at 
Find discount Dex Cool Coolant Price and Free Shipping at Dex Cool Coolant - Bookshelf
Corvette C5 Performance Projects, 1997-2004
The LSI engines at Bowling Green are filled with a mix of 45 percent tap water and 55 percent ACDelco Dex-Cool coolant. Dex-Cool ...Popular Mechanics
Havoline Extended Life Anti-Freeze/ Coolant DEX- COOL meets or exceeds all ASTM specifications mandated for light duty automobiles and trucks, ...Auto Upkeep, Basic Car Care
Servicing Dex-Cool Antifreeze Change every 5 years or 150000 miles Test once a year • • Freezing and Boiling Pure water should not be used to cool an ...Chilton's Auto Repair Manual 1993-1997
1996-97 Vehicles CAUTION These vehicles have a newly developed engine coolant. DEX-COOL was developed to last for 100000 miles or 5 years whichever occurs ...Chilton's General Motors, full-size trucks, 1999-01 repair manual :
Never dump used anti-freeze on the ground or pour it into drains. CAUTION: The manufacturer recommends using only DEX-COOL coolant for these systems. ...Day-by-day Walkthroughs Directory
Dex Cool, Dex-Cool, Dex Coolant, Dex Cool Coolant, Dex-Cool ...
Dex Cool, Dex-Cool, Dex Coolant, Dex Cool Coolant, Dex-Cool Coolant, Dex Iii, Dex Cool Antifreeze, Coolant, Detector, Dex-Cool®, Detector Laser, Laser ...
GM Owners Still Steaming Over Dex-Cool
"I have sludge in my coolant caused by Dex-Cool,' he wrote. ... Deborah was told the Dex-Cool needed to be flushed and refilled even though the ...
Dex-cool Contamination
One of the more popular extended life coolants is Dex-cool. ... The "recommended" service intervals of Dex-cool coolant is 5 years 100K miles and in some cases 150K miles. ...
Facts on Dex-Cool coolant vs. regular coolant? - Yahoo! Answers
Facts on Dex-Cool coolant vs. regular coolant? Can someone provide me with links or ... Dex-Cool does last longer than Ethyl-Glycol but when it goes bad it ...
MACS 2001: GM and Texaco "Bare All" about DEX-COOL®
2. The coolant problems found in this survey were caused by system ... 7. Mixing a "green" coolant with DEX-COOL reduces the batch's change interval to 2 years ...