{"product_id":"gtechniq-citrus-foam-car-shampoo-w4-33-8-fl-oz-concentrated-degreaser-biodegradable","title":"Gtechniq Citrus Foam Car Shampoo W4 — 33.8 fl oz Concentrated Degreaser, Biodegradable","description":"\u003cp\u003e\u003cstrong\u003eGtechniq W4 is a concentrated citrus foam shampoo and degreaser that lifts road grime and oily deposits while remaining non-caustic and biodegradable.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEngineered for car enthusiasts and professional detailers alike, this 33.8 fl oz formula blends effective cleaning power with gentle chemistry. The citrus-based surfactants cut through grease and traffic film, producing thick foam that clings to paint for easier removal. Its non-caustic pH and biodegradable ingredients make it a practical choice when you want strong results without harsh chemicals.\u003c\/p\u003e\n\n\u003ch3\u003eHow does Gtechniq W4 remove stubborn road grime?\u003c\/h3\u003e\n\u003cp\u003eW4 combines concentrated detergents and citrus solvents to break down oils, tar, and brake dust bonds on the surface. Foam helps suspend loosened particles so they wash away without aggressive scrubbing that can cause scratches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFoam clings to vertical panels for longer dwell time\u003c\/li\u003e\n  \u003cli\u003eCitrus solvents dissolve oily residues and tar\u003c\/li\u003e\n  \u003cli\u003eConcentrated blend spreads easily, minimizing product use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this safe for paint, wheels, and rubber trim?\u003c\/h3\u003e\n\u003cp\u003eThe formula is non-caustic, designed to be safe on automotive paint, plastic trim, rubber seals, and most wheel finishes when used as directed. Always test a small hidden area if you’re unsure about an aftermarket coating or delicate finish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePH-balanced, non-caustic chemistry for general use\u003c\/li\u003e\n  \u003cli\u003eSuitable for painted surfaces, plastic, and rubber when rinsed correctly\u003c\/li\u003e\n  \u003cli\u003eNot abrasive—no need for aggressive mechanical action\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I dilute and apply Gtechniq W4 for best results?\u003c\/h3\u003e\n\u003cp\u003eMix according to the level of soiling—light wash to heavy degreasing—and apply with a foamer, foam gun, or bucket and mitt. Let the foam dwell briefly, agitate gently with a microfiber mitt if needed, then rinse thoroughly from top to bottom.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard dilution for general cleaning: follow label guidance\u003c\/li\u003e\n  \u003cli\u003eUse a foam lance or foamer for maximum contact time\u003c\/li\u003e\n  \u003cli\u003eRinse from top downward to avoid re-depositing dirt\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill Gtechniq W4 impact waxes or paint sealants?\u003c\/h3\u003e\n\u003cp\u003eBecause W4 is a strong cleaner and degreaser, heavy use or high-strength dilutions may reduce wax or sealant durability over time. For maintenance washes on protected cars, use milder dilutions to preserve existing protective layers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLight dilutions maintain most waxes and sealants\u003c\/li\u003e\n  \u003cli\u003eUse stronger mixes only for heavy contamination or wheel\/tire cleaning\u003c\/li\u003e\n  \u003cli\u003eReapply protection after deep cleaning if desired\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Gtechniq W4 is aimed at car owners, mobile detailers, and workshop professionals who need an effective, biodegradable cleaner that removes grease and road film without resorting to harsh caustics. It suits anyone looking for a concentrated shampoo that works in foam form for easier cleaning, especially before polishing or restoring vehicles.\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 W4 with a foam lance?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — W4 works well in foam lances and foam guns; adjust dilution for foam thickness and dwell time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is W4 environmentally friendly?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: W4 is 100% biodegradable and formulated to be non-caustic, reducing environmental impact compared with harsh cleaners.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Gtechniq","offers":[{"title":"Default Title","offer_id":48084770193566,"sku":"B00Q2RJ3E4","price":37.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gtechniq-w4-front-label.jpg?v=1785862559","url":"https:\/\/northtrailauto.ca\/products\/gtechniq-citrus-foam-car-shampoo-w4-33-8-fl-oz-concentrated-degreaser-biodegradable","provider":"North Trail Auto","version":"1.0","type":"link"}