best winter oil
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Joined: Jul 2003
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From: Adams TN
best winter oil
well i just changed my oil about 1500 miles ago, 15w40delo cause i had some i usually use rotella 15w40. but a cold snap just hit us and its just too heavy and slows cranking down so i figure before i hurt something i should switch to a lighter oil
its about 26 for the low high in the 30's and only going to get worse. i run synthetic rotella and delo, so should i go to 5w40? or 10w30?
thats after i get it home, turns out i have a duraspark system complete with a 2150 2bbl carb i didn't know about. just need the 2bbl adapter, not sure where to get one. its all off my friends 77 mustang that he is putting a efi 5.0HO into. so i can have all the goodies.
which oil would work best?
its about 26 for the low high in the 30's and only going to get worse. i run synthetic rotella and delo, so should i go to 5w40? or 10w30?
thats after i get it home, turns out i have a duraspark system complete with a 2150 2bbl carb i didn't know about. just need the 2bbl adapter, not sure where to get one. its all off my friends 77 mustang that he is putting a efi 5.0HO into. so i can have all the goodies.
which oil would work best?
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I used to keep a straight 30 weight in my car here in South Texas. We took off for a skiing vacation in Colorado....next morning that oil was thicker than molasses...the starter couldn't even turn the engine over.
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will running 15/40 rotella t gonna hurt anything during these cold snaps we have in tennessee? I live in the south end and we had a cold snap this week end. My truck cranks fine and hits right off. No unusual noises, the only difference is my mechanical gauge is alot slower to build up, and that is the only concern i have, how is this no to low oil pressre the first say 15-20 seconds effect the motor in the long run? This is a 1987 f150 fuel injected, motor was rebuilt prior to my getting it.. So any comments??
later chris
later chris
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Joined: Jul 2003
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From: Adams TN
thats exactly what i am getting. i am in middle tn bout 30min north of nashville
takes longer to build pressure that seems about it.
DT
takes longer to build pressure that seems about it.
DT
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From: Sussex County, DE
I run it like a diesel, so I use a diesel rated oil. Newer oils don't have the extreme pressure lubrication qualities that a torquey, low rev engine needs. I use 5 qts of Mobil 1 0W-40, and one quart of Lucas Synthetic Oil Stabilizer, to add back the extreme pressure lubricants that today's lighter engines don't use. New engines run with alot of revs, so the low rev high pressure lubricating qualities older oils and diesel oils have are missing from most SM rated oils. The 0W-40 Mobil 1 I use is Rated SM/CH. The CH isn't the highest diesel rating out there, but it's better than no "C" rating at all, and the Synthetic Lucas treatment brings alot of film strength to the party. When I'm pulling a hill in top gear at 1/4 throttle at 1,000-1,200 RPM, it's nice to know that my oil film strength is up to the task. No cold start issues either, but I have a marine battery and I/O 2 gauge cables.
Last edited by Argo; Dec 21, 2006 at 08:36 PM. Reason: grammar
Postmaster
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From: Spokane, WA
For 2550+ different opinions on which oil and additives to use/not use try bobistheoilguy.com.
For me, 10w-30 dino year round and no additives. (one of those 2550 + opinions). The "Large Car" diesel engine manufactures usually advise against additives their contention being that available oils are already formulated with sufficient, balanced additive packages and the addition of additives upsets that balance...(More opinion.)
For me, 10w-30 dino year round and no additives. (one of those 2550 + opinions). The "Large Car" diesel engine manufactures usually advise against additives their contention being that available oils are already formulated with sufficient, balanced additive packages and the addition of additives upsets that balance...(More opinion.)
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These I6 engines are old school and there is no problem with a 40 or even a 50 weight oil. No extra close tolerance bearings here. I think that the 40 weight diesel oils are about prefect for these engines. The 5w-40 oils do have an edge in building oil pressure at startup when compared to the 15w-40 versions. Even when it's not cold the 5W oil will pump up quicker. That will result in less wear over time.
Personally I run the 15W-40. I'm in Southern California so I don't see the temperature drop below 30 very often. If I go on a trip somewhere colder I would only be concerned if the temps were below 0. However, if I lived somewhere else where the normal low was much below 20 I would be using a thinner oil than 15w-40.
Personally I run the 15W-40. I'm in Southern California so I don't see the temperature drop below 30 very often. If I go on a trip somewhere colder I would only be concerned if the temps were below 0. However, if I lived somewhere else where the normal low was much below 20 I would be using a thinner oil than 15w-40.
