RazMan
|
| posted on 22/4/07 at 09:56 PM |
|
|
Best sensible oil for Duratec?
I've now covered a few thousand miles and soon I am going to change the oil. To date I have been using SAE 5W/30 but the oil pressure seems to
be quite low at tickover - sometimes less than 0.5 bar and the oil light flicks on occasionally.
Is 5W/30 ok for the V6? Should I go a little thicker for summer use? SAE 10W/40 maybe?
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
|
|
|
|
|
Johnmor
|
| posted on 22/4/07 at 10:02 PM |
|
|
Most engines of that age would run nicely on fully synth 10/40
Cosco did a good deal on Mobil 10/40.
Check the book in case but I think 5/30 is too thin and the bearing clearance will mean a loss of oil pressure.
|
|
|
higgsti
|
| posted on 22/4/07 at 10:14 PM |
|
|
run my 2l on10w 40
|
|
|
RazMan
|
| posted on 22/4/07 at 10:32 PM |
|
|
I checked the Haynes bible and it states that 5W/30 is ok but it is the thinnest recommended oil, the thickest being 10W/40 which I will change over
to. The 5W/30 is like water! I'll probably go for semi-synthetic because I like to do frequent oil changes and fully synthetic isn't
exactly locost 
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
|
|
|
bilbo
|
| posted on 23/4/07 at 07:32 AM |
|
|
According to Ford, the prefered oil for the 2.5 V6 Duratec is the 5W30 - this is what I run my Mondeo on and it's been fine. You can also use
10W40 and 5W40.
HTH
---------------------------------------
Build Diary: http://bills-locost.blogspot.com/
Web Site: http://locost.atspace.com
|
|
|
Catpuss
|
| posted on 23/4/07 at 08:32 AM |
|
|
If the engines are anything like the old Zetech ones they can be sensitive to thicker oil. I've heard quite a few stories (and had a friend
suffer from) valves sticking due to using 10W40 rather than a decent synthetic 5W30. These were the earlier mondeos though so perhaps engine
improvements have resolved this since.
|
|
|
stuart_g
|
| posted on 23/4/07 at 08:40 AM |
|
|
Same here stay away from cheaper thicker oils they are trouble for these engines. 5W30 may be more expensive but not as expensive as engine trouble
could be.
|
|
|
RazMan
|
| posted on 24/4/07 at 07:58 AM |
|
|
Good points guys - perhaps I will stick with 5W/30 and try full synthetic next oil change. I'm still a bit puzzled by the low oil pressure at
tickover though, usually after a long run.
Maybe I should think about an oil cooler to be on the safe side.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
|
|
|
Peteff
|
| posted on 24/4/07 at 09:50 AM |
|
|
Oil at running temp is about the consistency of paraffin. 0.5bar is about 7psi, you could just have a sensitive sender. An oil cooler might be a good
idea as it may be a temperature issue with the engine in a different situation.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
RazMan
|
| posted on 26/4/07 at 12:56 PM |
|
|
As a matter of interest, what oil pressure should I be seeing on a Duratec?
I seem to be running between 2.5-3.0 bar when cruising but it appears to spike between 1.0-4.0 bar when running around town. This might be due to my
digital gauge which doesn't smooth out the readings.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
|
|
|
