Description
Repair, installation, and use context
Evaluate Johnsen’s 5034 Premium Synthetic DOT-4 Brake Fluid – 1 Gallon in the context of a Brake Fluids repair, installation, or use case. The source application detail is: Viscosity: Stable viscosity over wide temperature range, compatible with DOT 3 and DOT 4 standards.
Plan access, tools, and surrounding components around this supporting source detail: Designed for use in disc, drum and ABS brake systems. Confirm this final recorded point before work begins: Brand: Johnsen’s.
Job-planning boundary
The page preserves the supplied facts but does not infer an unlisted vehicle, installation method, or repair result.
Complete source-backed product details
| Material | Abs |
|---|---|
| Brand | Johnsen’s |
| Package Information | Bottle |
| Liquid Volume | 128 Fluid Ounces |
| Item Weight | 8 Pounds |
| Recommended Uses For Product | Brake oil |
| Viscosity | Stable viscosity over wide temperature range, compatible with DOT 3 and DOT 4 standards |
| Upper Temperature Rating | 446 Degrees Fahrenheit |
| Specific Uses For Product | Automotive brake systems |
| Item Form | Liquid |
| Global Trade Identification Number | 00039101050348 |
| Manufacturer | Johnsen’s |
| Unit Count | 128.0 Fluid Ounces |
| UPC | 039101050348 |
| Number of Items | 1 |
| Model | 5034 |
| Item Weight | 8 pounds |
| Product Dimensions | 10 x 7 x 4.5 inches |
| Item model number | 5034 |
| Manufacturer Part Number | 5034 |
Designed for use in disc, drum and ABS brake systems
Source product highlights
About this item
- Synthetic quality brake fluid
- Contains special ingredients to guard against vapor lock and moisture absorption
- Exceeds requirements for both DOT 3 and DOT 4 brake fluids
- Specially formulated for DOT 4 brake fluid applications
- Designed for use in disc, drum and ABS brake systems
Popeye –
The oil is excellent. A very light colour and at 11.23ea on sale was a bonus.
Drumhappy –
I like that it comes in a 1 gal quantity because I had a full system to flush and bleed. Also, I have noticed some reviewers complain that they were cheated because the label says “DOT 3+4” and they think this means that the product is a mixture of DOT 3 and DOT 4. This is mistaken. The difference between DOT3 and DOT4 is the 4 has a slightly higher boiling point which will help resist heat fade. However, the DOT 4 often comes labeled as 3+4 because the two are cross compatible, meaning that if you have a brake system that takes DOT3, it’s OK to put DOT4 into it, and it’s OK to add DOT 4 to the system as a top off. Now when it comes to DOT 5, that is a silicone fluid that is not cross compatible and should never be added to a DOT 3 or DOT 4 system. So the DOT 3+4 product is actually the DOT4 spec, it is not a blend. If you want the full DOT4 boiling point then you must totally flush your system with all DOT 4, and if you add DOT4 to a quantity of DOT3 fluid you won’t get the full boiling point but the compatibility is OK.
David M –
This works well and is cheap for full synthetic. I use it when I need to flush a full system.
Jr –
Great product good great delivery .good to deal with
Jose A. Mejia –
Good price for a gallon!
Consumer Safety –
“Johnsen’s 5034 Premium Synthetic DOT-4 Brake Fluid – 1 Gallon” works great for me. With six adult kids, this Busy Texas Dad is always working on vehicles and checking/replacing/replenishing fluids.After recently bleeding the brakes on my 2008 Lexus ES350, it is stopping better that it did before.
Rush –
Good choice for brake flushing, quality product at a reasonable price.
AJL –
It’s decent brake fluid in a large capacity… Works well and seems good quality.
Shawn D –
Met the requirement for Volvo brake reservoir