How many bottles does it take to flush a four cylinder system?

Based upon my experience, ONE bottle is more than enough.

Is it safe for aluminum radiators? Their website doesn't say.

I have used it in aluminum radiators a lot If the radiator is in bad shape it might leak This is a great product here

What are the disposal instructions on this product?

Just recycle ♻️ at recycling center

Can you use this for boats?

I don't own a "ship" but sure has hell my "boat" has a water to water heat ex-changer that gets strangled by salt and mineral deposits on the lake/sea side, that require a nice acid boil to clean out. The closed loop with coolant in it gets flushed every two years. I would not trust much of what you say about "boats".

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Flush the past, drive the future! ⚙️

KEEP YOUR COOL - Prevents overheating by restoring radiator efficiency and flow.
TRUSTED TOP RANKED - Ranked #3 in Radiator Flushes with 4.5-star reviews—join thousands who trust BlueDevil.
EXTEND ENGINE LONGEVITY - Flushes harmful deposits to help your vehicle run smoother, longer.
CONCENTRATED EFFECTIVE - Small 32 oz bottle packs a potent punch for maximum cleaning power.
DEEP CLEAN NO COMPROMISE - Powerful formula removes rust, scale & grime from your cooling system.

BlueDevil Radiator Flush is a concentrated 32 oz formula designed to deep clean your vehicle’s cooling system by removing rust, scale, and grime. It restores radiator efficiency, prevents overheating, and extends engine life, making it a top-rated choice (#3 in Radiator Flushes) with a 4.5-star customer rating.

Specifications

ASIN	B00BJOT9A8
Best Sellers Rank	#40,249 in Automotive ( See Top 100 in Automotive ) #2 in Radiator Flushes
Brand	BlueDevil Products
Customer Reviews	4.5 4.5 out of 5 stars (502)
Date First Available	February 22, 2013
Item Weight	2.4 pounds
Item model number	00204
Manufacturer	BlueDevil Products
Manufacturer Part Number	00204
Model	00204
Product Dimensions	5 x 2 x 8.5 inches

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