Oil Change Interval Question
Thread Starter
|
Junior User
Joined: Mar 2003
Posts: 67
Likes: 0
Oil Change Interval Question
As a new diesel owner, I'm looking at my service guide and note that there are many different, apparently conflicting recommendations.
I live in Canada, and thus have the "luxury" of have a Ford of Canada owners manual/service guide supplied with my truck. In addition, the diesel supplement was supplied. This is a universal document.
The numbers:
Ford Canada guide 7.5 kkm (5 k miles) normal duty, 5 kkm (3 k miles) special service duty
Diesel Supplement 12 kkm (7.5 k miles) normal duty, 8 kkm (5 k miles) special service duty
The Canadian guide suggests oil changes 1-1/2 times the rate of the diesel supplement! More frequent changes is directionally better, but ther comes a point of little or no return (oil not dirty).
Recommendataions?
I live in Canada, and thus have the "luxury" of have a Ford of Canada owners manual/service guide supplied with my truck. In addition, the diesel supplement was supplied. This is a universal document.
The numbers:
Ford Canada guide 7.5 kkm (5 k miles) normal duty, 5 kkm (3 k miles) special service duty
Diesel Supplement 12 kkm (7.5 k miles) normal duty, 8 kkm (5 k miles) special service duty
The Canadian guide suggests oil changes 1-1/2 times the rate of the diesel supplement! More frequent changes is directionally better, but ther comes a point of little or no return (oil not dirty).
Recommendataions?
Posting Guru
Joined: Aug 2003
Posts: 1,081
Likes: 0
From: Eastern Oregon
I wonder why the Canadian version is different? Personally, I'd change it at 3000 miles for the first one. Then go 5000 miles a couple of times. Have your oil tested each time. Then try 7500 miles a few times, if you don't tow a bunch, have dusty conditions, and test your oil comparing the results to the first tests. This should give you some good benchmarks to base a decision. Just my .02.
New User
Joined: Apr 2005
Posts: 4
Likes: 0
on average, my GCVW is 25,000 going down the highway. That's all I do with the truck is tow a 51' car hauler or a 40' flatbed. It is common to go up to 30-35k lbs.. I change oil at 10k and filter every 5k, and have always had very satisfactory oil analisys results using this method.
There are many general recommendations, but the only conclusive answer for YOUR enging is by used oil analisys.
JMHO..
Lee
There are many general recommendations, but the only conclusive answer for YOUR enging is by used oil analisys.
JMHO..
Lee
Posting Guru
Joined: Jul 2001
Posts: 1,914
Likes: 1
From my understanding from the folks here at the lab, Canada has a lot more sulphur in the diesel fuel than the US. More sulphur in the fuel will make more sulphuric acid in the combustion chamber and it gets washed into the oil. Maybe someone from Canada can confirm that.
