how about a cadi norhtstar engine?

Yes. No problem with the Northstar engine. Use Purple Ice as directed on the bottle.

will this be ok for my 2008 ford edge v6?

I have used it for years in all my vehicles and am yet to replace a water pump or a radiator. It will work just fine in your 2008 Edge.

How can I replace it annually do you add a bottle every year or change the coolant with it ?

You can just add more each year, then start over again when you do your periodic coolant flush.

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Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive - 12 oz.

Product ID: 1243964

Details

Brand
Royal Purple
Global Trade Identification Number
Item Weight
0.8 Pounds
Liquid Volume
1 Quarts
Manufacturer
Royal Purple

⚙️Lubricates water pump seals

🌡️Up to 22°F coolant temp drop

🛡️Advanced corrosion & electrolysis protection

€ 49.58

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Stay Cool, Drive Cooler — The Secret to Engine Longevity!

WATER PUMP WELLNESS - Contains lubricants that protect and prolong water pump seal durability.
UNIVERSAL COMPATIBILITY - Works seamlessly with all coolant types—green silicate, OAT, HOAT, and straight water systems.
COOLER ENGINE MORE POWER - Reduces coolant surface tension for up to 22°F lower temps, unlocking hidden horsepower.
ULTIMATE CORROSION SHIELD - Fights erosion, electrolysis, and scale buildup to extend radiator and engine life.
TRACK READY STREET SMART - Safe for daily drives and high-performance racing, ensuring year-round engine protection.

Royal Purple Purple Ice is a premium synthetic radiator additive that reduces engine temperatures by lowering coolant surface tension, providing up to a 22°F drop. It offers superior corrosion, erosion, and electrolysis protection while lubricating water pump seals. Compatible with all coolant types and suitable for both street and racing applications, Purple Ice extends cooling system life and enhances engine performance.

Specifications

ASIN	B000BRGAJ2
Best Sellers Rank	#43,741 in Automotive ( See Top 100 in Automotive ) #103 in Antifreezes & Coolants
Brand	Royal Purple
Customer Reviews	4.5 4.5 out of 5 stars (1,936)
Date First Available	July 7, 2004
Item Weight	12.8 ounces
Item model number	ROY01600
Manufacturer	Royal Purple
Manufacturer Part Number	01600
Model	01600
OEM Part Number	01600
Position	Center
Product Dimensions	3.75 x 1.14 x 7.5 inches
Voltage	12 volts

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TrustScore 4.5 | 7,300+ reviews

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