No, Bar's Leaks Radiator Flush is a non-acid formula and is safe to use on all cooling system materials. Harmless to all parts of the cooing system, including aluminum.

No, Bar's Leaks Water Pump Lube with Anti-Rust meets leading car and truck manufacture requirements. Protects Aluminum, Copper, Iron and all other parts of the cooling system.

No, it will not damage the cooling system. It is harmless to ALL plastic metals, aluminum, hoses and connections. In addition, it is non-toxic. Tablets fully dissolve in minutes. We recommend you drive/idle vehicle for 15 to 20 minutes. Most leaks are sealed immediately, and all others will be sealed within this amount of drive/idle time. If the leak is not sealed, a second application maybe required.

Replace it. In most VWs this is pretty easy to do (1 hr), and a new radiator (which is = OEM) can be had for around 100-150US$. The hard part, esp. in older cars and in Europe, is finding the right radiator. Even VW does not keep track of what car left the factory with what radiator. Furthermore, the serial numbers are not very useful because they may not be available anymore.

From ND]: The proper way to renew the coolant is to remove the thermostat so as to drain the complete system. Jan: This is true for all 4 cyl cars, the VR6's have a drain plug located right next to the dip stick. Also don't forget to turn your interior heat to max as to drain that too.] [ND] When we do a Coolant service at the shop we replace the thermostat and o-ring with our special low temp 80 Celius unit from Germany.

Bar's Leaks Professional DiFM Cooling System Treatment 5-gram tablets are the perfect product to use any time servicing the cooling system, including parts replacement and flush & fills. It inhibits the formation of rust and scale, keeps the system clean, neutralizes pH imbalance, controls electrolysis, lubricates and seals internal, external and coolant-to-oil leaks.

No, you must first drain and flush the entire cooling system, including the overflow tank and refill with water. All antifreeze must be removed from cooling system or clogging could occur.

These products contain sodium silicate (liquid glass) and this is not compatible with antifreeze. Most types of antifreeze contain silicate and an excess amount of silicate will cause the antifreeze to gel.

Yes, tablets are compatible with both conventional green or blue (Silicate-Based) and extended life red/orange or yellow (OAT/HOAT) coolant. This includes brand names and types like Dex-Cool and GO5.

Yes, tablets work in systems containing only water. When used in water alone, it is also recommended to use a cooling system anti-rust and water pump lube for extra corrosion protection.

Minerals & deposits build up over time which can cause overheating. Bar's Leaks Radiator Flush will help your cooling system by removing these deposits and leaving your system factory clean.

Many factors enter into this, such as engine horsepower, ambient temperature, vehicle speed, and amount of airflow. Generally speaking, a 20-25% increase in cooling ability is a number which is usually obtainable.

It will seal external, internal and coolant to oil leaks. Once installed, the Bar's Leaks particles shrink up to 15 percent. On an external leak, the tiny particles flow to the point of the leak. They then collect at the outside of the seepage and build inward. Internal leaks, the Bars Leaks particles will burn when subjected to the 5000 degree heat of the combustion chamber to seal minor head gasket seepage and small cracks.

Yes, but we suggest that you double the amount of FX2 to 5 litres. If the distributor / spreader tube, which directs the incoming water towards the far side of the radiator, has broken away, so that the entrance and exit are effectively only 1/2" apart, any flushing effect on that radiator will be minimal. Conversion to opposing inlet and outlet valves is a better long term proposition.

No. Just wipe it up and follow up with a solvent such as spray carb cleaner to further clean and dry it. However, the best thing is to put drip pan or heavy cardboard to catch the oil. Then cleaning will not be necessary.

Bar's Leaks will seal external, internal and coolant to oil leaks. Once installed, the Bar's Leaks particles shrink up to 15 percent. On an external leak, the tiny particles flow to the point of the leak. They then collect at the outside of the seepage and build inward. Internal leaks, the Bars Leaks particles will burn when subjected to the 5000 degree heat of the combustion chamber to seal head gasket seepage and small cracks.

people have had very good luck with the prestone flushing system and there is a tech article about it. you can find it here. several members in the warm, humid climates have reported good success switching to the trd 165 degree thermostat. no! this will cause the car to warm up erratically, the coolant, and oil temperatures in the engine to vary considerably, and both of these will cause accelerated wear of components such as rings and bearings.