Redex Products

Compare prices across 2 UK supermarkets

Store Availability

See which supermarkets stock Redex products

Share this comparison

Help us improve

What can we do to improve our website and services?

Your feedback helps us build a better experience

About Redex

Redex is the iconic UK fuel additive brand that has been helping drivers since 1922 - over 100 years of motoring heritage. Created in an era when petrol quality was poor and engines were more problematic, Redex became synonymous with engine care. In the 1950s and 60s, petrol station attendants would famously ask 'shot of Redex with the petrol?' as part of the fill-up routine. In 1973, Redex was acquired by Holts and joined the Holts Auto family of automotive products. Today, Redex remains the UK's market leader for fuel additives, continually innovating to meet the demands of modern vehicles. In 2015, the brand launched the Redex Petrol Injector, combining three products into one for maximum convenience. The modern Redex range includes Petrol System Cleaner (which also protects against E10 corrosion), Diesel System Cleaner, DPF Cleaner for diesel particulate filters, Super Fast Emissions Reducer, Lead Replacement for classic cars running on leaded petrol, and AdBlue. Redex has also expanded into fully synthetic engine oils for various vehicle specifications including Ford, BMW, VW, and Mercedes-Benz. Compare Redex prices at UK supermarkets on Grocefully. We track fuel system cleaners, DPF cleaners, engine oils, and AdBlue across Tesco, Asda, and other retailers to help you find the best deals on the UK's most trusted fuel additive brand.

FAQs

Grocefully is a smart grocery shopping app that automatically compares prices across all major UK supermarkets (Tesco, ASDA, Sainsbury's, Morrisons, etc.) and helps you buy from the cheapest stores. We handle the complexity of split orders so you save money without any extra effort.

Our users save an average of 25-30% on their total grocery bill. For a typical £100 weekly shop, that's £20-25 in savings even after our 5% service fee. The exact amount depends on your shopping habits and the products you buy.

We currently support Tesco, ASDA, Sainsbury's, Morrisons, Waitrose, and Iceland. We're constantly adding new stores and will notify you when more become available.

Grocefully is available wherever the supported supermarkets deliver. Simply enter your postcode when you sign up to check availability in your area.

Our AI scans real-time prices from all supported supermarkets every time you shop. It finds exact matches or suitable alternatives for each item on your list, then automatically selects the cheapest option while considering delivery fees and minimum order requirements.

You can set brand preferences for any item. If you prefer specific brands, Grocefully will only compare prices for those brands. You can also allow substitutions for some items while keeping others fixed.

Grocefully shows you available delivery slots from each store and helps coordinate them. We optimize to get you the most convenient delivery times while maintaining the best prices.

Yes! You can link your loyalty cards from each supermarket and continue earning points on all your purchases. We'll automatically apply any available discounts.

We charge a simple 5% service fee on your total order value. For example, if your groceries cost £100, you'll pay £5 as a service fee. This covers our costs for finding you the best prices, handling multiple orders, and providing customer support.

Our users save an average of 25-30% per shop. Even after the 5% service fee, you're still saving 20-25% on average. For a £100 shop, you'd save £25-30 and pay £5 in fees, netting you £20-25 in savings!

The service fee is automatically calculated and shown before you complete your order. It's added to your total, so you only make one payment. No hidden charges or surprises.

Yes! Grocefully is completely free to download and use. You only pay the 5% service fee when you place an order. Browse, compare prices, and create shopping lists as much as you want without any charges.

No hidden fees! You pay the grocery prices (same as shopping directly), the stores' delivery fees (if any), and our 5% service fee. That's it. We believe in complete transparency.

If you're not happy with your savings, contact our support team. We'll review your order and if we didn't save you money (after accounting for our fee), we'll refund the service fee. Your satisfaction is our priority.

Yes, you can modify orders up until the supermarket's cut-off time (usually a few hours before delivery). Any changes are automatically synced across all your orders.

If an item is out of stock, we'll automatically find the next cheapest option from another store or suggest a suitable replacement. You can set preferences for how you want us to handle substitutions.

Refunds are processed according to each supermarket's policy. If you're not satisfied with your savings, contact our support team - we offer a money-back guarantee on our service fee.

Our customer support team is here to help resolve any issues. We work directly with the supermarkets to ensure quick resolution of any problems.

Ready to save on Redex products?

Join thousands of UK families who compare prices across all supermarkets to find the best deals

Compare All Stores
Real-time
Prices updated every 60 seconds
100% Free
No hidden fees or subscriptions
UK-wide
Compare all major supermarkets