Interesting document on CAT fluids, including EC1 coolant - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 01-19-2015, 01:00 AM Thread Starter
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Interesting document on CAT fluids, including EC1 coolant

Just found an interesting Caterpillar brochure:

The discussion on EC-1 coolants begins on page 71 I believe, with the most details on page 75. The coolant section begins on page 67.

Some of their statements:

EC-1 rating is Cat saying that it conforms with certain ASTM standards: ASTM E1177 and D6210. Also D3306, but not D3306 alone.

Also, page 71 specifically states that OAT coolants that contain silicates do not meet the EC-1 standard.

On page 75 it states:

"Note: The CAT EC-1 specification describes the minimum requirements for Extended Life Coolants."

Table 29 (also on page 75) gives more details, and the discussion below Table 29 describes the required testing for the EC-1 rating.

Interesting statement on page 74 of the link:

"All CAT engines that are equipped with a CAT NOx Reduction System require a minimum of 50% glycol concentration to help prevent cavitation damage and boiling of the coolant."

I would bet that our EGR systems are similarly sensitive to the coolant concentration as well.

06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270AXP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD BilletWaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs

Last edited by bismic; 01-19-2015 at 01:02 AM.
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post #2 of 4 (permalink) Old 01-19-2015, 02:55 AM
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Thanks for posting that. I'll read it another time when I'm less adverse to think about coolant.

Jack -
Formerly FMTRVT, Manager of Vehicle Testing - Brakes

2003 F-350SC Lariat 4x4 6.0L Auto

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Step Lights;Painted Flanges; Bypass Oil Filter; Heated Mirror Switch; Reverse Lights; 7.3L Fuel Reg Shim; 6 Disc Radio Speed Volume Mod; Coolant Filter, etc.
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post #3 of 4 (permalink) Old 01-20-2015, 06:42 PM
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Thanks for the link Mark. It was good reading.

2006 F-350 CC, LB, SRW, Lariet 5sp Auto. Burgandy Exterior with Tan Leather Interior. 4" Exhaust turbo back. Studded with ARP bolts 6/15/2013 with OEM Gaskets, SCT Custom tunes by Kem Performance, Isspro gauges, Blue spring kit upgrade. Coolant filter, Afe pro guard 7 stage 2 air intake.
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post #4 of 4 (permalink) Old 01-21-2015, 03:41 AM
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Just read through the document, I agree with Eddy, excellent info covering everything from engine oils to fuels to coolants and more. Good read Mark-thanks!


Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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