RAVENOL ETC Concentrate Protect C12evo is an ethylene glycol–based coolant developed using Si-OAT (Silicated Organic Acid Technology). The formulation is designed to provide long-term corrosion protection and frost protection for cooling systems in combustion engines when mixed with water at the correct ratio.
This coolant is free from 2-ethylhexanoic acid (2-EHA) as well as nitrites, amines, phosphates, and borates, and is suitable for modern aluminium and mixed-metal cooling systems. It is supplied as a concentrate and must be diluted with water before use.
Mixing Guide
The concentrate must be mixed with water prior to use. Typical mixing ratios are shown below:
- Protection to approx. -20°C 35% coolant / 65% water
- Protection to approx. -37°C 50% coolant / 50% water
- Protection to approx. -50°C 60% coolant / 40% water
The minimum recommended concentration is 35%, and the maximum is 60%. Always follow the vehicle manufacturer’s recommendations when selecting concentration ratios.
Key Features & Characteristics
- Long-term corrosion protection for aluminium and mixed-metal cooling systems
- Si-OAT inhibitor technology combining organic acids with silicates
- Helps prevent deposits and foam formation in the cooling system
- Compatible with elastomers commonly used in automotive radiators
- Free from nitrites, amines, phosphates, borates, and 2-ethylhexanoic acid
- Suitable for year-round use when mixed correctly
Manufacturer Standards & Recommendations
- ASTM D3306
- ASTM D4985
- ASTM D6210
- BMW LC-87
- BS 6580:2010 (UK)
- Cummins CES 14603
- CUNA NC 956-16
- Deutz DQC CC-14
- DTFR 29C100 (Mercedes-Benz MB 325.0)
- DTFR 29C120 (Mercedes-Benz MB 325.5)
- Fiat 9.55523
- Ford ESD-M97B49-A
- Iveco 18-1830
- JIS K 2234 (Japan)
- Liebherr LH-01-COL3A
- MAN 324 NF
- MAN 324 Si-OAT
- Mercedes-Benz MB 325.0 (Concentrate)
- Mercedes-Benz MB 325.5
- MTU MTL 5048
- ÖNORM V 5123 (Austria)
- SAE J1034
- Volvo TR 1286083
- Volvo TR-31854114-002
- VW TL 774-L (G12evo)
Application Notes
This product should only be used in cooling systems where a Si-OAT coolant meeting the listed manufacturer standards is specified. The cooling system should be clean and free from leaks before filling. Mix only with demineralised or distilled water. Always consult the vehicle manufacturer’s service documentation for correct coolant selection and service intervals.
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AUTO HOUSE SHOP – SHIPPING & DELIVERY INFORMATION
ESTIMATED SHIPPING TIMES BY BRAND
Below are our typical delivery timeframes. All delivery times are shown in working days (Monday–Friday) and exclude weekends and UK bank holidays.
STOCK CATEGORIES AND DISPATCH
Items Held by Auto House Shop: If an Auxbeam or Ravenol product shows a stock quantity (e.g., “2 in stock”), we physically hold that item at our premises. These are dispatched within 24 hours for 1–2 working day delivery.
UK Distribution Stock: If a product from DBA, Pedders, Xforce, Xtreme Clutch, Ryco, or Saber shows a stock quantity, it is held at our partner distribution centre in the UK. These are dispatched directly to you and typically arrive within 2–4 working days.
Ravenol Supplier Stock: Ravenol items not held physically by us are supplied via the UK distribution network and typically arrive within 2–4 working days.
European Warehouse: Certain performance components are sourced from European distribution hubs and carry a lead time of 5–10 working days. This is clearly labeled on the product page.
International Supplier Stock (Auxbeam): Auxbeam items not held physically by us are supplied via international distribution and carry a lead time of 10–15 working days.
Manufacturer Stock (Australia): Parts supplied directly from Australia (DBA, Xforce, etc.) are processed as special orders. These do not show a live UK quantity and carry extended lead times of 6 weeks as specified on the product page.
BRAND-SPECIFIC DELIVERY ESTIMATES
AUXBEAM
UK Stock (At Auto House Shop): 1–2 Working Days
International Supplier Stock: 10–15 Working Days
RAVENOL
UK Stock (At Auto House Shop): 1–2 Working Days
UK Supplier Stock: 2–4 Working Days
DBA, PEDDERS, XFORCE, XTREME OUTBACK CLUTCH, RYCO, AND SABER
UK Distribution Stock: 2–4 Working Days
European Stock: 5–10 Working Days
Manufacturer Stock (Australia): 6 Weeks
IMPORTANT INFORMATION
Live Lead-Times: The most accurate delivery estimate for your specific part is displayed directly on the product page above the Add to Cart button. This message updates automatically based on live availability.
Tracking: All orders are sent via tracked courier services. Tracking numbers are provided via email as soon as the item is dispatched.
Customs and Duties: For all items shipped from Australia, Europe, or International hubs, Auto House Shop handles all import formalities. The price you see at checkout is the final price; there are no hidden import fees for UK delivery.
Stock Fluctuations: Availability is updated hourly via our live sync. If an item becomes unavailable after an order is placed, we will contact you immediately with a revised timeframe or a full refund.
Please refer to our full Shipping Policy and Returns & Refunds Policy for further details.
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