DEI Radiator Relief Coolant Additive, bottle, front view
DEI Radiator Relief Coolant Additive, bottle, label view
DEI Radiator Relief Coolant Additive, bottle, back label
DEI Radiator Relief Coolant Additive, bottle, front view
DEI Radiator Relief Coolant Additive, bottle, label view
DEI Radiator Relief Coolant Additive, bottle, back label

DEI Radiator Relief Coolant Additive - 16 oz

DEI SKU: DEI40200
Price
21% OFF
In Stock – Ready to Ship
Make sure this fits your vehicle Select your vehicle to confirm fitment before you order. Check
Shipping calculated at checkout.

Details

BrandDEI
SKUDEI40200
GTIN / UPC607078402004
Manufacturer Part Number40200

Product Information

A coolant additive that helps the radiator move heat more efficiently, lowering coolant and engine temperatures by up to 30°F. It also contains a corrosion inhibitor and an anti-foaming agent, helps keep pH stable and reduces existing scale build-up. It has to circulate and mix with the coolant before it takes effect, and it cannot fix a faulty thermostat.

Specifications

Type Coolant additive
Size 16 oz bottle
Mix Ratio 1 oz per quart of coolant
Application All water-cooled engines; mixes with water and all types of antifreeze; safe with cast iron, copper, brass and aluminum radiators
Warranty Limited warranty for as long as the original purchaser owns the vehicle

Documents: Safety Data Sheet (PDF), Sell Sheet (PDF), FAQ (PDF)

Does the effect wear off?

  • No. Its performance does not dissipate over time.

Can it be used with other coolant additives?

  • Yes. It is compatible with all coolant additives and antifreeze mixtures.

Is it biodegradable?

  • Yes. It is a 100 percent biodegradable, non-corrosive and non-toxic additive.

Shipping

  • In stock orders typically ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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