VW / Audi / Porsche HT-12 Engine Coolant Concentrate - Zerex (1 Gallon)
VW / Audi / Porsche HT-12 Coolant Concentrate — Zerex
G12 Evo SpecConcentrate1 GallonPink
Zerex HT-12 · Si-OAT Formula · 1 Gallon Concentrate
Zerex HT-12 is a long-life engine coolant made for VW, Audi and Porsche vehicles that call for G12 Evo. It's a concentrate — mix it 50/50 with distilled water and one gallon gives you two gallons of ready-to-fill coolant.
⚠️ Concentrate: Mix 50/50 with distilled water before filling. Want pour-and-go? Grab the Genuine VW 50/50 premix.
Maintenance & UpkeepCheck the level with the engine cold — it should sit between MIN and MAX on the expansion tank. If the system has been drained, bleed it fully; trapped air causes hot spots and a cold heater.
$21.00
1 Gallon Concentrate · Free shipping on orders $100+
1
G12 Evo spec
Up to 5 yrs / 150k mi
Makes 2 gal mixed
VW / Audi / Porsche HT-12 Coolant Concentrate — Zerex
G12 Evo SpecConcentrate1 GallonPink
⚠️ Concentrate: Mix 50/50 with distilled water before filling. Want pour-and-go? Grab the Genuine VW 50/50 premix.
$21.00
1 Gallon Concentrate · Free shipping on orders $100+
1
Specs
What you're getting.
SpecHT-12 / G12 EvoFor VW Group vehicles that call for G12 Evo coolant
ChemistrySi-OAT HybridOrganic acids plus stabilized silicates — phosphate, nitrite, amine and borate free
Protection (50/50)−34°F Freeze / 265°F BoilProtects aluminum and all cooling system metals against corrosion
Service LifeUp to 5 Years / 150,000 miLong-life formula
CompatibilityG12 · G12 Evo · G12+++ · G13Can be used in vehicles running any of these coolants
Mix Ratio50/50 with Distilled Water1 gallon of concentrate makes 2 gallons mixed
Part #Zerex 904683Cross-ref: G12E0501GRTU · G12E100M2 · G12E0501GDSP
Size1 Gallon (3.78 L)Pink concentrate
Fitment
Will it work in my car?
⚠️ Confirm the coolant spec on your expansion tank cap or in your owner's manual. If you don't know what's in the system, flush and refill rather than mixing.
By coolant type
| Coolant in your system | Compatibility |
|---|---|
| G12 Evo | Direct Match |
| G13 | Compatible |
| G12+++ | Compatible |
| G12 | Compatible |
| G11 or unknown coolant | Flush First |
By vehicle
Volkswagen
| Model | Years | Engine |
|---|---|---|
| Golf | 2020*–2021 | 1.4T |
| GTI | 2020–2024 | 2.0T |
| Golf R | 2022–2024 | 2.0T |
| Jetta | 2020*–2025 | 1.4T · 1.5T |
| Jetta GLI | 2020*–2025 | 2.0T |
| Arteon | 2019–2023 | 2.0T |
| Atlas | 2020*–2025 | 2.0T · 3.6 VR6 (to 2023) |
| Atlas Cross Sport | 2020–2025 | 2.0T · 3.6 VR6 (to 2023) |
| Taos | 2022–2024 | 1.5T |
| Tiguan | 2020*–2024 | 2.0T |
| ID.4 | 2021–2024 | Electric |
Audi
| Model | Years | Engine |
|---|---|---|
| A3 / A3 Quattro | 2020–2025 | 2.0T |
| S3 | 2022–2024 | 2.0T |
| RS3 | 2020–2024 | 2.5T |
| A4 / A4 allroad | 2020–2025 | 2.0T |
| S4 | 2021–2024 | 3.0T |
| A5 / A5 Sportback | 2020–2024 | 2.0T |
| S5 / S5 Sportback | 2021–2024 | 3.0T |
| RS5 / RS5 Sportback | 2019–2024 | 2.9T |
| A6 | 2020–2025 | 2.0T · 3.0T |
| A6 allroad | 2020–2025 | 3.0T |
| S6 | 2021–2024 | 2.9T |
| RS6 Avant | 2021–2024 | 4.0T |
| A7 Sportback | 2019–2025 | 3.0T · 2.0T (2021–22) |
| RS7 Sportback | 2021–2024 | 4.0T |
| A8 | 2020–2025 | 3.0T · 4.0T (2020–21) |
| S8 | 2020–2024 | 4.0T |
| Q3 | 2020–2025 | 2.0T |
| Q5 / Q5 Sportback / Q5 PHEV | 2020–2025 | 2.0T |
| SQ5 / SQ5 Sportback | 2020–2025 | 3.0T |
| Q7 | 2020–2025 | 2.0T · 3.0T |
| SQ7 | 2020–2024 | 4.0T |
| Q8 | 2019–2025 | 3.0T |
| SQ8 / RS Q8 | 2020–2024 | 4.0T |
| TT / TTS | 2020–2023 | 2.0T |
| TT RS | 2020–2022 | 2.5T |
| R8 | 2020–2023 | 5.2 V10 |
| e-tron / e-tron S / Sportback | 2019–2023 | Electric |
| e-tron GT / RS e-tron GT | 2022–2023 | Electric |
| Q4 e-tron / Sportback | 2022–2024 | Electric |
| Q8 e-tron / Sportback | 2024 | Electric |
Porsche
| Model | Fitment |
|---|---|
| Macan, Panamera & other models that call for G12 Evo | Confirm Spec |
* 2020 Golf, Jetta, Tiguan and Atlas switched to G12 Evo partway through the model year. Older VW and Audi models running G12, G12+++ or G13 can also use this coolant — see the coolant type table above. Not sure? Email your VIN to contact@eurowerks.co and we'll confirm.
Ready to top off?
HT-12 Coolant Concentrate
Zerex · 1 Gallon
G12 Evo Spec · Mix 50/50 with Distilled Water
$21.00
VW / Audi / Porsche HT-12 Engine Coolant Concentrate - Zerex (1 Gallon)
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