{"product_id":"gtechniq-car-shampoo-auto-w1-gwash-pink-grapefruit-500ml-biodegradable-ph-neutral","title":"Gtechniq Car Shampoo Auto W1 GWash – Pink Grapefruit 500ml, Biodegradable \u0026 pH-neutral","description":"\u003cp\u003e\u003cstrong\u003eGtechniq Auto W1 GWash is a concentrated, high-foaming car shampoo that gently lifts dirt and grime while preserving waxes and ceramic coatings.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for enthusiasts and detailing pros alike, this 500ml bottle mixes into a rich, lubricating foam that reduces abrasion during washing and dissolves road film for a streak-free finish. Its pink grapefruit fragrance makes the task more pleasant, while the biodegradable, pH-neutral formula is safe for paint, wheels, screens and the environment.\u003c\/p\u003e\n\u003ch3\u003eHow does this shampoo protect paint and coatings during washing?\u003c\/h3\u003e\n\u003cp\u003eAuto W1 GWash is formulated to lubricate contaminants so dirt particles glide off rather than scratch the surface. It is pH-neutral and non-acidic, meaning it won’t strip waxes, sealants or ceramic coatings when used as directed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLubrication reduces risk of swirl marks during mitt or sponge use.\u003c\/li\u003e\n  \u003cli\u003eChemical action helps break the bond between grime and paintwork for easier removal.\u003c\/li\u003e\n  \u003cli\u003eSafe for use over existing protective layers—no defeating of wax or ceramic coatings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat concentrations and dilution steps should I use for best results?\u003c\/h3\u003e\n\u003cp\u003eThe shampoo is concentrated so a small amount produces thick foam; typical dilution rates depend on wash method. Use a bucket-and-mitt technique for general cleaning or a foam-lance for heavy soiling to maximize dwell time and lubrication.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBucket wash: dilute according to label—one capful in a wash bucket yields a high-foaming solution.\u003c\/li\u003e\n  \u003cli\u003eFoam-lance: mix per lance manufacturer instructions for dense clinging foam.\u003c\/li\u003e\n  \u003cli\u003eRinse thoroughly with clean water after washing to reveal a clear, glossy finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIs this product environmentally friendly and safe for other surfaces?\u003c\/h3\u003e\n\u003cp\u003eYes—Gtechniq Auto W1 is 100% biodegradable and non-toxic, minimizing environmental impact compared with harsher detergents. Its neutral pH also makes it safe for use on alloy wheels, screens and trim when diluted correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBiodegradable formula breaks down naturally after use.\u003c\/li\u003e\n  \u003cli\u003eNon-toxic and non-acidic—gentle on rubber, plastics and glass.\u003c\/li\u003e\n  \u003cli\u003eSuitable for multi-surface cleaning when following dilution guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow will the fragrance and sensory experience affect regular washing?\u003c\/h3\u003e\n\u003cp\u003eThe pink grapefruit scent adds a fresh, citrus note to routine washes without overpowering chemical smells. The high-foaming action also improves visibility of covered areas so you can work systematically and reduce missed patches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSubtle grapefruit aroma makes washing more pleasant.\u003c\/li\u003e\n  \u003cli\u003eThick foam highlights treated areas for thorough coverage.\u003c\/li\u003e\n  \u003cli\u003eEasy rinsing leaves no residue and a showroom-like shine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWho is this for: Gtechniq Auto W1 GWash is aimed at car owners who value paint protection and a scratch-free wash—detailers, weekend washers and anyone using waxes or ceramic coatings. It suits those who want a concentrated, biodegradable cleaner that lifts stubborn road grime while being kind to finishes and the environment.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eCleaner\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use Gtechniq Auto W1 over ceramic coatings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it is pH-neutral and formulated not to strip ceramic coatings when used at recommended dilution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the shampoo safe for alloy wheels and screens?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the biodegradable, non-acidic formula is safe for alloy wheels and glass when diluted correctly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Gtechniq","offers":[{"title":"Default Title","offer_id":55165544137047,"sku":"B00IOMMJT6","price":31.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/gtechniq-autow1-front-packaging.jpg?v=1790355295","url":"https:\/\/britishgarage.co.uk\/products\/gtechniq-car-shampoo-auto-w1-gwash-pink-grapefruit-500ml-biodegradable-ph-neutral","provider":"British Garage","version":"1.0","type":"link"}