QP5 Coolant "Foam" (?) - Maserati Forum
 
LinkBack Thread Tools Display Modes
post #1 of 12 Old 03-27-2019, 10:03 PM Thread Starter

InnerCircle
 
Join Date: Jun 2016
Location: Tucson AZ
Maserati Life Posts: 832
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 162 Post(s)
QP5 Coolant "Foam" (?)

Pic taken from right front looking at reservoir coolant level with foamy white (?) film on top of coolant. Pic taken just after engine was turned off, at full operating temp, dash temp gauge showing nominal 195F. Dipstick covered with amber oil, nothing else.

Normal? Abnormal? Any ideas?

KTBD
Attached Thumbnails
Click image for larger version

Name:	Coolant Foam.jpg
Views:	47
Size:	45.9 KB
ID:	122097  
kissthebricksdad is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 03-27-2019, 10:20 PM
 
Join Date: Apr 2012
Maserati Life Posts: 2,204
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 501 Post(s)
I don't see anything that crazy with that at all..Change the coolant if you are concerned, but I don't really see anything real odd. Someone could have topped up coolant with a container that had some detergent in it previously or something...I wouldn't think twice about it...Jason

ASE Master Tech. 29 years experience
Ferrari, Maserati, Land Rover, & Jaguar technician.
Guru in Atlanta of Jaguar V12 & XJS cars.

Last edited by [email protected] Enzo`s Atlanta; 03-27-2019 at 10:50 PM.
[email protected] Enzo`s Atlanta is online now  
post #3 of 12 Old 03-27-2019, 11:53 PM
 
Join Date: Feb 2019
Location: Washington
Maserati Life Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
What about mixing phosphate (green) and non phosphate (orange, yellow, ect) coolant? I'm no expert but I have read on the "internet" that mixing the two can be bad, causing gelling or foaming. Your reservoir looks green.... pretty sure Maseratis did not come with green coolant. I would just do a flush and fill with the recommended coolant if it concerns you.

2011 Quattroporte S, 1987 425i biturbo
2fromtheCouve is online now  
 
post #4 of 12 Old 03-28-2019, 12:11 AM
 
Join Date: Apr 2012
Maserati Life Posts: 2,204
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 501 Post(s)
That is Dex-cool and that is orange...That would be a problem as the two don't mix...Maserati uses a blue coolant that mixes fine with the normal green coolant...You can't really go by the color these days as most of it is a dye...Somewhere along the line coolant got all complicated...Just don't use the GM Dexcool stuff...It sucks and doesn't mix with other coolants..Jason

ASE Master Tech. 29 years experience
Ferrari, Maserati, Land Rover, & Jaguar technician.
Guru in Atlanta of Jaguar V12 & XJS cars.
[email protected] Enzo`s Atlanta is online now  
post #5 of 12 Old 03-28-2019, 12:33 AM
 
Join Date: Feb 2019
Location: Washington
Maserati Life Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Quote:
Originally Posted by [email protected] Enzo`s Atlanta View Post
That is Dex-cool and that is orange...That would be a problem as the two don't mix...Maserati uses a blue coolant that mixes fine with the normal green coolant...You can't really go by the color these days as most of it is a dye...Somewhere along the line coolant got all complicated...Just don't use the GM Dexcool stuff...It sucks and doesn't mix with other coolants..Jason
Well forgive me if Im wrong but from my previous research Maserati and most European manufacturers used Hybrid Organic Acid Technology or HOAT type antifreeze which is not compatible with standard green phosphate type.

"This coolant is usually dyed yellow but comes in other colors like green, pink, blue, red and orange, which leads to a lot of confusion. One way to know for sure if you are getting HOAT will be by the packaging. Manufacturers often refer to this anti-freeze as “global” and will indicate on the bottle that it meets or exceeds the specification “G-05” "

The stuff in my 2011 reservoir definitely is yellow ish not blue.

Dex cool is OAT and is different than HOAT. All very confusing...

2011 Quattroporte S, 1987 425i biturbo
2fromtheCouve is online now  
post #6 of 12 Old 03-28-2019, 12:42 AM
 
Join Date: Apr 2012
Maserati Life Posts: 2,204
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 501 Post(s)
My research is based on working on cars everyday...I drain hundreds of gallons of coolant every year and also replace a ton of old cooling system components every year so I get to see how they fail...I'm pretty confident in what I'm telling you in spite of what you may have read.. The manufactures have done their best to make it confusing...Jason

ASE Master Tech. 29 years experience
Ferrari, Maserati, Land Rover, & Jaguar technician.
Guru in Atlanta of Jaguar V12 & XJS cars.

Last edited by [email protected] Enzo`s Atlanta; 03-28-2019 at 01:04 AM.
[email protected] Enzo`s Atlanta is online now  
post #7 of 12 Old 03-28-2019, 01:11 AM
 
Join Date: Feb 2019
Location: Washington
Maserati Life Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Ok I agree you are the expert and I know there is a big difference between people who work on these cars for a living and those who dont. I wasn't trying to start a debate with you and I think your advice is the best to follow around here.

2011 Quattroporte S, 1987 425i biturbo
2fromtheCouve is online now  
post #8 of 12 Old 03-28-2019, 01:23 AM
 
Join Date: Apr 2012
Maserati Life Posts: 2,204
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 501 Post(s)
I honestly try to make things simple..The same people that tell you this and that are the same people that invented Dex-cool.. Here is the reality...The manufactures came up with 5 yr./150K coolant...Then they made a bunch of cooling system components out of plastic...Here is the kicker..It will never have to go 150K because you'll have to replace a plastic part at like 60 -70K and put new coolant in the car...Jason

ASE Master Tech. 29 years experience
Ferrari, Maserati, Land Rover, & Jaguar technician.
Guru in Atlanta of Jaguar V12 & XJS cars.
[email protected] Enzo`s Atlanta is online now  
post #9 of 12 Old 03-28-2019, 06:39 AM
MODERATOR

InnerCircle
 
Catmanv2's Avatar
 
Join Date: Jul 2012
Maserati Life Posts: 3,557
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 556 Post(s)
We really do need a 'like' button....

C

The Alfisti formerly known as Catman:
4.2 GT Automatic, 147 TS
Catmanv2 is online now  
post #10 of 12 Old 03-28-2019, 08:07 PM
 
Join Date: Feb 2019
Location: Washington
Maserati Life Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
I would 'like' to know whats up with that foam? Any updates ktbdad?

And the reason us shade tree mechanics have to do our own research is because you are not supposed to believe what just one guy says on the internet.... But if I had to choose one guy to believe it would be you Jason. Most professionals do not like to spend time on the forums... and we do value your experience and knowledge with these cars.

2011 Quattroporte S, 1987 425i biturbo
2fromtheCouve is online now  
post #11 of 12 Old 03-29-2019, 03:49 AM Thread Starter

InnerCircle
 
Join Date: Jun 2016
Location: Tucson AZ
Maserati Life Posts: 832
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 162 Post(s)
Working to get the car into the shop next week. Suspect a radiator end cap problem that may or may not have anything to do with the foam. Have a couple other rabbit holes to dive down also. Will report back. Things are just different with this engine's cooling system. Operating temp is 195F, not even water boiling point. Other cars' systems run normally 40-50 degrees hotter, a pressurized system. Not this one. FWIW, a Mas dealer is who put what's in the system now. I'll ask them to send me a pic of a label.

KTBD
kissthebricksdad is offline  
post #12 of 12 Old 03-29-2019, 02:23 PM
 
Join Date: Apr 2012
Maserati Life Posts: 2,204
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 501 Post(s)
190F. is right where the car should be running as you have a 88-90 Celsius thermostat....The system is a pressurized system just like any other car..It is just pretty efficient and doesn't normally build much pressure so you can remove the cap when hot and it doesn't boil over...Not all cars are like this and some you must wait till the car is cold to open the cap...Jason

ASE Master Tech. 29 years experience
Ferrari, Maserati, Land Rover, & Jaguar technician.
Guru in Atlanta of Jaguar V12 & XJS cars.
[email protected] Enzo`s Atlanta is online now  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Maserati Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Other QP5 Coolant Hoses kissthebricksdad QP5 2003-2012 1 02-15-2019 09:28 AM
-New to me- 2012 QP5 GTS. Decided between QP5 vs QP6 ggms16 QP5 2003-2012 14 01-27-2017 11:37 AM
Large foam part in my roof? Slotted Coupe, Spyder, GS 4 10-25-2012 11:01 PM
70 Ghibli air cleaner foam strip Lee Vintage Maserati 1 04-10-2011 09:30 PM
Save 20% plus on selected items - Foam Gun, Microfiber, Collinite DetailersDomain Maserati Care & Detailing 0 02-10-2011 04:04 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome