[Spridgets] No Castrol DOT 3 available : (

Michael MacLean rrengineer.mike at att.net
Sun Jun 23 15:06:14 MDT 2019


 Linda,     All brake fluids are synthetic.  The DOT system of numbers all relate to the boiling point or temp before the stuff boils.  DOT 3 is good enough for such a light car as a Spridget.  I would suggest Lockheed DOT 4.  It was recommended to me recently by a local parts supplier that has been selling Brit car parts for 40 years.  The Castrol Brake Fluid is no longer made by the same people in England.  It is not the same stuff anymore.  I just rebuilt the complete brake system on my Bugeye and replaced all the fluid with the Lockheed stuff.  It mixes with DOT3 fine as the base stock is the same.  

220-400 DOT4 BRAKE FLUID, lockheed delphi, 500ml | Moss Motors

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220-400 DOT4 BRAKE FLUID, lockheed delphi, 500ml | Moss Motors

220-400 DOT4 BRAKE FLUID, lockheed delphi, 500ml|BRAKE FLUID, 500ml
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    On Sunday, June 23, 2019, 1:54:25 PM PDT, corvallis--- via Spridgets <spridgets at autox.team.net> wrote:  
 
 #yiv2946018927 #yiv2946018927 -- _filtered #yiv2946018927 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv2946018927 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv2946018927 {font-family:Verdana;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv2946018927 #yiv2946018927 p.yiv2946018927MsoNormal, #yiv2946018927 li.yiv2946018927MsoNormal, #yiv2946018927 div.yiv2946018927MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:sans-serif;}#yiv2946018927 a:link, #yiv2946018927 span.yiv2946018927MsoHyperlink {color:blue;text-decoration:underline;}#yiv2946018927 a:visited, #yiv2946018927 span.yiv2946018927MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv2946018927 p.yiv2946018927msonormal0, #yiv2946018927 li.yiv2946018927msonormal0, #yiv2946018927 div.yiv2946018927msonormal0 {margin-right:0in;margin-left:0in;font-size:11.0pt;font-family:sans-serif;}#yiv2946018927 span.yiv2946018927EmailStyle18 {font-family:sans-serif;color:windowtext;}#yiv2946018927 .yiv2946018927MsoChpDefault {font-family:sans-serif;} _filtered #yiv2946018927 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv2946018927 div.yiv2946018927WordSection1 {}#yiv2946018927 
My brain was confusing synthetic with the word silicone. 

>From the web I get “DOT 5 brake fluid is silicone based. DOT 3 (standard) and DOT 4 (heavy-duty) are glycol-based.”

http://collision.alldata.com/online2help/shopOps/Inspection_Forms,_System_Checklists_and_Customer_Questions/Answers_to_Common_Customer_Questions/Brakes/can_dot_5_brake_fluid_be_used_instead_of_dot_3_or_41.htm

You are good to go with DOT 4 in with your DOT 3.  Bill in Oregon

==================================================

From: Spridgets <spridgets-bounces at autox.team.net> On Behalf Of derf via Spridgets
Sent: Sunday, June 23, 2019 1:11 PM
To: Linda Grunthaner <grunthaner at gmail.com>
Cc: Spridget list <Spridgets at autox.team.net>
Subject: Re: [Spridgets] No Castrol DOT 3 available : (

  

DOT 4 can be used in place of and can mix with DOT 3. 

  

  

On Sun, Jun 23, 2019 at 3:05 PM Linda Grunthaner via Spridgets <spridgets at autox.team.net> wrote:


Hi Spridgiteers,

I want to bleed my brakes but the stores or Amazon nolonger carries Castrol GT LMA DOT3 brake fluid. I thought I had a few bottles left but I was wrong and have her on stands patiently waiting for her fluid. Yesterday I took her out for the first time and needed a little more fluid before heading out. I only drove 8 blocks and while sitting at a light the peddle went to the floor. I quickly pumped the brake and it was fine to get home. I put her on stands in the driveway getting ready to bleed as I suspected an air bubble but no store carries Castrol GT LMA Dot 3 any more. Suggestions please. One of the members on a Facebook Spridget group said to flush and add Castrol DOT4 which is synthetic, he said I wouldn't need to replace the wheel cylinders or the master cylinder I I did that but I am by myself and use a stick to hold the peddle using a tube into fluid to prevent air, I have a one handed blender but I couldn't get it to work properly. Maybe I should look at a youtube.

  

What would Frank say?

Linda

62 California Sprite "Pinky"

  

  

  

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"Pay if forward" in honor of Frank Clarici III, Spritenut

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