Liqui Moly 1804 Radiator Cleaner - 300 ml

It cleans the radiator very well. I used full quantity and flushed with battery distilled water 3 times and radiator was cleaned completely.

Why did you pick this product vs others?: Very nice product Jammu

Never ever buy this . It's more dangerous than actual rust or debris. Even after 25 litres of distilled water flush after using this product still I'm getting foamy bubbles complete waste of time and efforts . If not cleared properly these bubbles with mix with coolant and do more damage to water pump.

Working 30% only....

ممتاز جدا

I added this Liqui Moly radiator cleaner during a coolant flush on an older vehicle. The additive mixes quickly, and after letting the engine run, I could see the old coolant draining out with noticeably more debris than a water flush alone. The bottle is the right size for a single treatment, and the instructions are clear. After flushing and refilling with fresh coolant, the engine temperature held more consistently, especially during longer drives. Minor note: it’s important to run the heater while circulating the cleaner so it reaches the full system — not really a con, just part of the process. For anyone doing DIY coolant maintenance, this helps get a more thorough clean.

عمل تنضيف للدورة فعلاً ضيفته وشغلت الدفاية لمدة نص ساعة وبعدها نزلت منه الميه القديمة ونزل الصدى الي كان فيها

I used 2 bottles for my Subaru STI , but you have to clean it 2-3 times after it

Unbelievable product. My neighbour didn't believe in products like this, but when he saw the colour and texture of the old antifreeze, he made a purchase. Very satisfied. Would recommend this product.