Thread: motul 660 rbf
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      06-23-2015, 07:30 PM   #21
bigjae1976
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Drives: 11 E90 M3 Individual
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2004 BMW M3  [4.50]
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Quote:
Originally Posted by Richbot
I've heard more than one recommendation for Elf 650 recently. Comes in a blue plastic liter bottle.

I definitely will be upgrading to something heavier duty next time I flush, I have a lot of Motul 600 and that's what's in the car now so next time I bleed it'd be stupid not to use it, but I have experienced some fluid fade, which is the first time I've ever experienced it with Motul 600. This car makes a lot of brake heat. I've not tried the 660.
I've used 660. It faded and died just like 600. I think it's a waste of money. It's not like the boiling points are so much higher. If you're in the neighborhood of 600's boiling point, you'll probably boil or at least degrade 660 to the point where if feels like you're stepping on a woodie cushion.

At least SRF can survive 18 months of abuse despite similar specs. It came out super dirty...but still felt pretty good. That's why SRF is worth the $$$.
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