hey guys. going to be replacing my brake fluid in my vr. just wondering whats the best sort for my car. and commodores in general thanks again :dance:
very timely question Haydz .. I'm doing mine tonight too. I reckon all the regular dot 4's are all about the same. I am using Valvoline 'Performance Dot 4', it has a high boiling point. i reckon the PBR dot 4 is ok too. I assume VR's use DOT 4 ?
The fluid we use and recommend is the TRW GP600 brake fluid: TRW GP600 Dot 4 Racing Brake Fluid Dry - Min 310 Wet - Min 204 That's about the best out there short of Castrol SRF, or GS610. But significantly cheaper than either of them at $59 for a 1L bottle. For comparison, some other popular brands: Motul Dot 5.1 270 dry 185 wet Castrol Response Super Dot 4 286 dry 184 wet Valvoline Performance Dot 4 270 dry Your regular Dot 4's are a fair bit lower than that.
The legal minimum boil temperatures for Dot 4 is dry 230 and wet 155 - that's about what your el-cheapo $6 per 500ml brake fluid rates at. The reality is that most people don't drive racing cars and the el-cheapo brand will perform as well as expensive name brands under normal driving conditions.
What ever you do, keep track of what you use as you can't mix DOT3 and DOT4. I'm pretty sure the VR's were DOT3 from factory as the DOT4 wasn't around in '93. But it is only a guess.
