Later fords use the same Zerex coolant, SAAB and BMW also use it.

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

great comments:

wheel vibration: I have decent tires (not the very best) but well balanced..still it is shaking at high speeds. Well maybe you are right and I should get a new set of tires.

Cat and exhaust temps: I have cut the Cat open and removed the inner ceramic part and closed it again (welded the thing). It should be open.
Not sure what can clog otherwise.
Is there a way to test restriction?

transmission cooler- great idea! I believe there is a trans cooler integrated in the radiator but it would be great to just add another cooler. Where is a good place to put the new cooler? Has someone done this on a 300SDL?

T-Stat 60/70 degrees? why not. I could have a 80 degree installed .
Does the 60 degree t-stat open more than the 80 degree? I just want to understand why the 60 cools better. At 100 degrees coolant temp: does the 60degree t-stat open more (more area) than the 80 degree one?
I'll get a 60 degree then.

new fan clutch then....Does the fan itself matter ?

best, Martin

Thanks

I was at a Ford dealer today. They have the 'yellow' stuff for newer Ford models. Older ones run on 'green' stuff the guy said....
So I can buy the yellow coolant?

The gold coolant is the zerex-G05 formula. be sure to get the concentration right, in the ME 30% is suggested. be sure to cut with distilled water only.

The 60C stat does not open more - it just opens up completely at a lower temperature, your 80C stat will only go to max cooling mode (bypass port blocked) when the thermostat temperature is 95C before that and above 80C the system runs in mixed mode. The 60C stat does that same thing somewhere near 80C. Hence your system gets to full cooling mode as it closes the bypass at a lower temperature.

There is a debate thread on this too.

Be sure that the fan clutch is working too. It should be really roaring in the ME heat.

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Your adjustment to the IP's full load stop must be reversed. The EGT's are too high....

__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership

I missed the part where he said he modified the IP?

OP: gut your cat.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I modified the IP. It can deliver slightly more fuel than stock, but I have no additional cooling device. Well I have an exhaust gauge and typically watch it if I hit the gas. Dr. Benz said- don't go beyond 1200/1300F for permanent driving

I typically don't use the additional hp, just sometimes during acceleration.
It is just so much fun to drive.

But now with my workplace being far out and a 3 lane highway, almost empty I tend to drive faster and I am experiencing these high exhaust temperatures.

I just wonder if a stock SDL at 80 or 90mph shows lower exhaust temperatures than mine.
I would not understand if it happened (my exhaust has no color and mileage is the same as before the IP adjustment) but who am I to know.

Update: I changed radiator, waterpump and t-stat (original Behr 80C).
Put water wetter in the coolant.

Unfortunately my oil pan started leaking (I hit a bump a while ago but no leak until now) need to fix this one...I have JB weld..hopefully JB is saving me.

As soon as I am on the road again I'll let yo know about the outcome.

I suspect the visco fan also not being 100% but I need to order the part.

Ford charged me 15 Rial in Muscat = $40 for a gallon of Ford Gold Coolant- crazy!

Gut the cat

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

Thats robbery. Do you know how to speak arabic? it may help you in locating some other spares shops that wont leech money from you.

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

I speak 3 word arabic... no way to communicate

Gut the cat. Alternatively you can soak it in citric acid like the radiator...

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

update on cooling temperatures after I changed: radiator, cooling pump, t-stat, and used water wetter from redline.

(I was lucky with repairing the oil pan damage with JB weld...no oil leaks any more!)

This is a difference in cooling temperatures:


Same outer conditions I had while driving (95F ambient, AC on, driving 80mph, same highway).
When I saw 110C on the dash before.... I am seeing 90C now!!!!

Problem solved..... the question now is (maybe) what was the problem?
What do you say?
The old water pump was fine I believe...nothing was wrong at least.
T-stat? The old one was exactly the same Behr...It actually looked brand new. I changed it anyway.
I'd say the radiator made probably the difference . the old one was probably restricted?
or covered inside with gunk? Outside it looked okay..not much dirt restricting airflow. But inside.....I could open it up and see how the inner pipes look??
Just if there is some interest.

And the water wetter stuff is probably doing some magic?