Folks,
I have just bought a 2001 E38, quite excited about it! Thinking to convert it to Evans waterless coolant. Have noticed that previous owner had lot of issues with cooling system (from repair bils).
Since I have never done such I've asked an Evans authorized shop for price and they quoted $1,100 for it (everything included).
Isnt that extremely high? Curious to know what is normal range for the work.
Thanks a lot!
George
88C stat and nothing else
Yes that is crazy expensive.
The 88*C t-stat is all you need. I actually used an OEM t-stat and had it recalibrated by a firm in TX. My car runs at ~92-104*C now depending on driving conditions. The upper radiator hose isn't nearly as rock hard as it used to be, and I regularly see 105-110*F on my dash with A/C blasting in the FL heat here. The best part is it still has the heating element in the thermostat, so the DME can control opening or closing it and doesn't throw a code.
'98 740il | 9/97 build | schwarz 2 | sandbeige | 5AT | 270k
'04 330i ZHP sedan | Mystic blue | Alcantara | 6MT | 120k
'00 540i sport | Titanium silver | Black | 5AT | 152k
'85 Mustang GT convertible | Medium charcoal metallic | Gray | 5MT | 216k | one owner, all original
mods: m-pars | Bilsteins & B&G springs | ValentineOne | StealthOne
retrofits: full nav | MKIV | bluetooth TCU | BM53 w/ AUX input | video module w/ AV input & backup cam | oem sirius xm | xenon | shades | PDC | rain sensor | BMW DWS TPMS | lighted door handles | front seat heaters | heated steering wheel | euro rear fog lights | ski pass | folding mirrors
lower Tstat and stock replacement coolant will not reduce system pressure......Evans will..
92 Dinan Stage III 850 Twin Turbo (1 of 4)
625 Hp on 93 pump gas @ 14 psi 660 ft lbs torque
bro, DIY....it's not that hard! buy yourself 4 gallons of Evans. do your normal cooling system refresh, refill with Evans, bleed properly, check after a few days, top off as needed. Soon whatever water was left in the system will have evaporated and you'll be good to go!
There is no way around thermal expansion; the system will still be pressurized.
2001 740i / S62 Swap / 6 Speed Swap / Titanium Silver Metallic / Grey Montana Leather / M Sport / Convenience Pkg / Heated Seats / PDC / MKIV Navigation / DSP / Bluetooth TCU / Dice Mediabridge / Vavona Trim / Illuminated ZHP Shift Knob / Short Shifter / Cat Delete / SAI Delete / Euro Tune / Koni Singles / H&R II Springs / Custom 3.15 25% Limited Slip Diff / Staggered OE M Parallels / 275 & 245 Firehawks / Euro City Lights / Celis Tail Lights / SunTek 70% CXP Tint
2005 M3 Coupe / 6 Speed / Silver Gray Metallic / Black Nappa Leather / Premium Pkg / Cold Weather Pkg / Bi Xenons / Adjustable Bolsters / MKIV Navigation / Harman Kardon / Bluetooth / Sirius XM / Aux In / Carbon Trim / ZHP Shift Knob / Short Shifter / StreamLine Intake / SS Headers / AR20 Resonator / Exhaust Bypass Valve / P0lar Tune / Koni Yellows / Eibach Springs / Staggered OE CSLs / 275 & 245 595 Evos / Angel Eyes / CF CSL Splitters / SunTek 38% Carbon Tint
2003 4.6is X5 / Stock /
$1,100?! For what, exactly?
I've had Evans (the same batch) in my car for probably 5 years now. I love it. If I open the cap there's a small hiss and that's it.
Running the engine at a lower temperature will reduce pressure. And significantly. The reason why the E38 has to run at 30 psi is because of the operating temp of the engine being well above the BP of water. Even though the 50/50 mix has a higher BP than water, it's not by much, so the system has to be pressurized to prevent boil over. Dropping operating temp 10-20 degrees C, significantly reduces the pressure needed to prevent boil over. I can squeeze my upper radiator hose when hot, whereas before it was hard as a rock. This also doesn't even mention the benefits to everything else from running a lower temperature.
Not discouraging using Evans...the pressure will be next to zero with that stuff. It's just expensive, a hassle to convert to, and you can't top it off or anything if you're on the road and develop a leak. I also do not think the heat transfer is as good as water. Nothing has the specific heat capacity of water.
Last edited by racer2086; 08-25-2017 at 11:35 AM.
'98 740il | 9/97 build | schwarz 2 | sandbeige | 5AT | 270k
'04 330i ZHP sedan | Mystic blue | Alcantara | 6MT | 120k
'00 540i sport | Titanium silver | Black | 5AT | 152k
'85 Mustang GT convertible | Medium charcoal metallic | Gray | 5MT | 216k | one owner, all original
mods: m-pars | Bilsteins & B&G springs | ValentineOne | StealthOne
retrofits: full nav | MKIV | bluetooth TCU | BM53 w/ AUX input | video module w/ AV input & backup cam | oem sirius xm | xenon | shades | PDC | rain sensor | BMW DWS TPMS | lighted door handles | front seat heaters | heated steering wheel | euro rear fog lights | ski pass | folding mirrors
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