I tested all my cars today and luckily there were no exhaust gases in the coolant. The test is really easy and there's enough to test over a dozen times. I used the same solution for all three cars since it didn't turn the solution from blue to yellow on any. At the end, I sampled the exhaust coming out the muffler and the solution turned yellow immediately. Definitely a good thing to have in the shop for the price.
Amazon.com: Block Tester BT-500 Combustion Leak Test Kit - Made in USA: Automotive
Buy Block Tester BT-500 Combustion Leak Test Kit - Made in USA: Gas Analyzers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
