⚙️ Drive with confidence, powered by precision.
Castrol TranSynd 668 is a premium 1-gallon transmission fluid engineered for superior gear protection, extended clutch and anti-shudder durability, and excellent resistance to corrosion, foaming, and thermal breakdown—ideal for professionals demanding reliability and peak automotive performance.
| Brand | MERCHANT AUTOMOTIVE |
| Package Information | Bottle |
| Liquid Volume | 1 Gallons |
| Recommended Uses For Product | Automotive |
| Item Form | Liquid |
| Manufacturer | Castrol |
| Unit Count | 128.0 Fluid Ounces |
| UPC | 079191219164 |
| Number of Items | 1 |
| Item Weight | 7.5 pounds |
| Package Dimensions | 11.73 x 9.57 x 4.76 inches |
| Manufacturer Part Number | TES 668 |
P**2
Better Than Expected
Did a 50,000 mile change in my 2018 Chevy 3500. After change shifts felt smoother and picked up around 1 MPG on next three tanks of fuel.
L**E
Great transaction for transmission fluid
Fluid came in good shape and sealed properly.. no problems..
R**S
Better than OE fluid for your Allison 1000 transmission
Fluid quality:Works excellent with the Allison 1000 6spd
V**N
Castrol TranSynd
Quality brand, reasonably priced
D**L
Best fluid for my Alison transmission!
As described quickly delivered
C**S
As advertised
Works well for my grandsons Silverado 2500
E**B
Great Product and Quality
Great Product, made my transmission run and shift alot better.
D**R
Best out there for the price!
Absolutely amazing service and quick delivery!
Trustpilot
4 days ago
2 weeks ago
