About this deal
You’ll realize that most of these organizations have different names for the grades/classes. Most of us in North America will probably be familiar with “DOT 3” or “DOT 4” brake fluid as defined by the FMVSS 116 standard. While the different standards offer different names, they tend to mostly all overlap and agree. product is particularly recommended for brake systems with ABS . FOSSER Brake Fluid DOT 4 Plus can be
Mobil Brake Fluid DOT 4
Since there is no DOT 4+ designation for brake fluid, I'm guessing that ML320 means DOT 4 or better (DOT 5.1). a b "ISO 4925:2005 - Road vehicles -- Specification of non-petroleum-base brake fluids for hydraulic systems". www.iso.org. Viscosity of the brake fluid is measured at two points. The first point is at 100 degrees Celsius and the second point is at minus 40 degrees Celsius. j_cd wrote:I'm not sure which year Volvo switched from DOT 3 to DOT 4(+). The '98 manual says DOT 4+. My guess is, the Volvo engineers liked that DOT4+ fluid, but it didn't really catch on, and our brakes are fine with regular. The difference between them is a specificed standard regarding the boiling temperature, which rises as the DOT number rises, and amount of water absorption.The Federal Motor Vehicle Safety Standards (FMVSS) under FMVSS Standard No. 116 defines grades DOT 3, DOT 4, DOT 5, and DOT 5.1. Regular DOT 4 has a minimum Wet Boiling Point of 165 degrees celsius, while the DOT 4+ spec is 180 degrees. The International Standards Organization (ISO) under ISO 4925 defines Class 3, Class 4, Class 5.1, and Class 6 brake fluids.
brakes - Mixing DOT 4 with DOT 4 synthetic - Motor Vehicle brakes - Mixing DOT 4 with DOT 4 synthetic - Motor Vehicle
Brake fluid is defined by a few internationally recognized standards organizations to ensure consistency in the performance of these brake fluids. These organizations and grades are: Again, MB is not a manufacturer of most [if any] of these fluids. As specified in the MB Factory Approved Service Products: "Mercedes-Benz USA recommends the use of Genuine Mercedes-Benz parts, accessories and factory-approved service products explicitly approved by us for your vehicle model." Has anoyone used DOT4 synthetic & DOT4 'doesn't mention synthetic' at all ? Are they ok to mix together ?DOT 5.1 maintains a lower viscosity in lower temperatures than DOT 4 all the way down to around -40 degrees C, although this is unlikely to be relevant in the UK. For this reason, DOT4 is often an appropriate choice of brake fluid and requires changing less often. Frequency of Fluid Change There are three essential measures used to set a fluid’s final DOT rating that consumers should be aware of: