I am just about concluded with a rebuild of a 300 I6 I have read alot of information about running 15W40 Rotella in this engine. Anyone doing this? Any ill effects or additional modifiers needed, or should this oil work well in the newly rebuilt 300
Rotella in a Ford 300 I6
- Thread starter Allan_G
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Why are you wanting such a thick oil on a fresh rebuild? A 10w30 would do fine in this engine.
The oil will be fine for use in your engine.
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Hmmmm Allan_G ...Allan, Gary L. ...Gary Allan ...
No worries with the Rotella, imo. I'd just use the cheapest SL/SM 10w-30 available for your first few short oil changes. You'll be purging assembly and machining debris for a bit ..so don't waste the cash.
No worries with the Rotella, imo. I'd just use the cheapest SL/SM 10w-30 available for your first few short oil changes. You'll be purging assembly and machining debris for a bit ..so don't waste the cash.
I'd run straight 30W for 500 miles then switch to Maxlife 10W-40.
I would run it the 15W40 in the warm months but would switch to Rotella-T Synthetic 5W40 for the winter months!
I ran Rotella and Delo 15W40 in my 300-6, had no problems..
The engine is darn near bulletproof!!!!
The engine is darn near bulletproof!!!!
my '89 I6 recommends 5W-30, 10W-30 or 15W-40. I certainly wouldn't go out and buy 40 weight if 30 will do. 180K miles, burns no oil.....
The old 300six will like 5W40 of your favorite brand. I ran one in an old farm truck using the 5W40HDEO and I sold it when it had 265K and still see it every week. A painter uses it as his work truck now. It would use a 1/2qt between changes regardless of how hard you ran it. Had the old granny gear 4spd. I have regretted selling it several times.
MY thinking exactly! I know these engines like a heavier oil, and I think the rotella will do a good job, not sure who else was doing this or recommended it. I want to be safe this time, the Oil pump took a dump while the EX girlfriend was driving, and left 2 nice chunks missing from the side of the block
Thanks guys for your t houghts.... At least I have Rotella T in the drum.
HDEOs are a great choice for this engine IMO.
Did anyone notice that Gary Allan and Allan G are both in PA?
My 300 I6 ('95) runs great on 10w40 Maxlife.
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