oil
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Senior User
Joined: Apr 2004
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oil
new to diesel i getting ready to change oil in my 2000 7.3 sd c/c
i bought the truck used so i dont know if it has regular oil or synthtic oil in it ( 70,000 )
i am tinking or going with synthtic what do you all think also it will be winter soon here in minnesota
can i get by using 10w-40w or should i go with 10w-30w !
i dont use my truck very much being i have a company vehical i use for work
thanks for your opinions
i bought the truck used so i dont know if it has regular oil or synthtic oil in it ( 70,000 )
i am tinking or going with synthtic what do you all think also it will be winter soon here in minnesota
can i get by using 10w-40w or should i go with 10w-30w !
i dont use my truck very much being i have a company vehical i use for work
thanks for your opinions
Lead Driver
Joined: Jun 2004
Posts: 6,304
Likes: 576
From: Amarillo, TEXAS!
Every big rig I ever owned was changed over to Delvac1 as soon as I could do so. Without exception, fuel economy improved, oil consumption decreased and overall cost of ownership went down. My last rig had a 3406E 475 hp Cat, and by performing oil analyses, I was able to extend the drain interval to 100,000 miles. I know this is just one of the oils available, but I swear by the Delvac1.
Freshman User
Joined: May 2004
Posts: 30
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Originally Posted by Pikachu
Every big rig I ever owned was changed over to Delvac1 as soon as I could do so. Without exception, fuel economy improved, oil consumption decreased and overall cost of ownership went down. My last rig had a 3406E 475 hp Cat, and by performing oil analyses, I was able to extend the drain interval to 100,000 miles. I know this is just one of the oils available, but I swear by the Delvac1.
Posting Guru
Joined: Oct 2003
Posts: 1,332
Likes: 4
From: Baltimore
If you use the 15w-40 in the winter you might have hard starting due to the oil thickening. 10w-30 would be a better choice. Just make sure it is CH-4 or CI-4 rated. In either case, if the truck has the original batteries you might want to consider replacing them before winter. They are getting near the end of their useful life.
