| Author |
Message |
Greg Rodgers (Joechristmas)
| | Posted on Tuesday, November 20, 2001 - 4:05 am: | |
Castrol LMA is a good choice. I use it in my Lotus and it works great. It has a minimum wet boiling point of 311F and a minimum boiling point of 446F. It costs about $2.29 per 12oz bottle. LMA means Low Moisture Activity. |
'75 308 GT4 (Peter)
| | Posted on Tuesday, November 20, 2001 - 3:13 am: | |
What's your opinion of Ford's DOT3 (they only mention a boiling point of 550*F)? One of my racing buddies used it successfully in his Datsun 510 racecar. I've been using it in my daily driver for years and just recently started with my GT4. |
Bill Sebestyen (Bill308)
| | Posted on Monday, November 19, 2001 - 7:51 pm: | |
ATE Super Blue has a dry boiling point of 536F and a wet boiing point of 392F. It is DOT 3 and DOT 4 rated, comes in blue and amber colors, to facilitate system flushes, and carries the same name as the caliper manufacturer, so compatibility should be excellent.
Valvoline SynPower is rated for a dry boiling point of 502F and wet boiling point of 343F. It is also DOT 3 and DOT 4 rated.
Off hand, I don't know what the specs are on Castol LMA, but I'm pretty sure it's less than the above choices. Higher boiling points are better. Bill
Bill |
Arnaldo Torres (Caribe)
| | Posted on Monday, November 19, 2001 - 12:31 pm: | |
Valvoline sells a brake fluid (forgot the name) which they claim it is rated for both DOT3 and DOT4 systems. I use it on my TR and it seems to work pretty good. |
Mark C. Gordon (Markg)
| | Posted on Monday, November 19, 2001 - 9:22 am: | |
DOT 3 and 4 are interchangable, but DOT 5 is silicon based and requires a very complete alcohol flush of system or new seals altogether. DOT 4 does have a higher boiling point, Castrol LM being a good choice due to it's compatability with the pure rubber seals used by some European car makers ( British especially!). |
Neville Pugh (Nev_Pugh)
| | Posted on Monday, November 19, 2001 - 8:28 am: | |
Sooooo .... if the only difference between 3 and 4 is that 4 has a higher boiling point (advantagous !) does that mean it's safe to use 4 in a car that was specified for 3 ? |
BobD (Bobd)
| | Posted on Monday, November 19, 2001 - 7:55 am: | |
Here's a pretty good explanation of the DOTs...
http://www.shotimes.com/brakes/part5.html |
Neville Pugh (Nev_Pugh)
| | Posted on Monday, November 19, 2001 - 6:30 am: | |
What is the difference between DOT 3 and DOT 4 brake fluid ?
My local car parts place (which is going downhill fast IMO) only stocks DOT4 and DOT5. I know DOT5 is synthetic and theoretically not suitable for my 308, but can I use DOT 4 ? (saying that, I notice from my old service reciepts that, up until the last service when DOT3 was used, for about 2 or 3 services before that DOT5 was used, presumably with no ill effects ......)
Thanks
Nev |
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