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 15W-40
#803234
04/06/07 03:48 PM
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Joined: Aug 2003
Posts: 712
OP
Rock Warrior
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Guys I have come across an endless supply of AMSOIL 15W-40 fleet oil and I'm curious weather or not to use it in my 91 YJ. The specs say its good for diesel and gas engines; anyone have any experiance with it? My engine in my old YJ has a fresh rebuild with only about 8K miles on it.
John Luttrell
2001 4x4 short cab, 3 inch lift with 33 inch mudders and Powertrax no-slip in the rear
1991 Jeep YJ, 4 inch suspension lift on 33" BFG's
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 Re: 15W-40
[Re: john_luttrell]
#803235
04/06/07 03:56 PM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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Howdy John 15-40 should be ok to use. The oil will be at 15 on cold winter mornings and at 40 in a running engine. I use the same oil in my deisels and if I come up short I use it in anything that needs some added. Around here straight 40 weight would be ok all year. Specially in a worn older engine where the clearences are opened from wear. Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: 15W-40
[Re: BigJim]
#803236
04/06/07 04:10 PM
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Joined: Aug 2003
Posts: 712
OP
Rock Warrior
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Thanks Bigjim, that's what I thought. What ya think about my daughters little '97 Saturn, will it be ok in it as well?
John Luttrell
2001 4x4 short cab, 3 inch lift with 33 inch mudders and Powertrax no-slip in the rear
1991 Jeep YJ, 4 inch suspension lift on 33" BFG's
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Re: 15W-40
[Re: john_luttrell]
#803237
04/06/07 04:28 PM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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Why not? It's Ok for lawnmowers ain't it? <img src="/forums/images/graemlins/smile.gif" alt="" /> Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: 15W-40
[Re: BigJim]
#803238
04/06/07 09:09 PM
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Joined: Jan 2007
Posts: 120
Wheeler
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I know a couple guys that specifically use 15w40 and nothing else in their GAS engines...diesel oil has more detergents as well, so it'll keep you running clean!!!
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Re: 15W-40
[Re: BigJim]
#803239
04/06/07 09:42 PM
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Joined: Oct 2002
Posts: 466
Mudrunner
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are you selling shares in Luttrel oil yet?
Last edited by jstritec; 04/06/07 09:43 PM.
80 CJ-7.
It runs
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Re: 15W-40
[Re: jstritec]
#803240
04/08/07 01:46 AM
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Joined: Jan 2007
Posts: 353
Mudrunner
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you can use that in any motor you would like. amsoil has the best lubricants out there i run their 0w-30 in my jeep and it doesnt burn any, it also starts right up like it does on a 75 degree day when its 0 degrees out, you can go a hole year without changing your oil and you see increased fuel economy. my brother has used it in his 87 grand national with 80,000 miles on it for a while and a couple months ago when he pulled the valve covers off to replace the valve springs it looked like it was a brand new engine i wish i had pictures because none of us could believe it
WHEN THE ROAD ENDS, THE FUN BEGINS
97 sahara, 4in skyjacker lift, 33in tires, borla header & catback, 10in subs
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Re: 15W-40
[Re: playinmud]
#803241
04/08/07 02:18 AM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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you can use that in any motor you would like. amsoil has the best lubricants out there i run their 0w-30 in my jeep and it doesnt burn any, it also starts right up like it does on a 75 degree day when its 0 degrees out, you can go a hole year without changing your oil and you see increased fuel economy. my brother has used it in his 87 grand national with 80,000 miles on it for a while and a couple months ago when he pulled the valve covers off to replace the valve springs it looked like it was a brand new engine i wish i had pictures because none of us could believe it I gotta doubt any increase in milage! I doubt the worst milage oil and the best milage oil would be findable by the driver.. Perhaps highly sophisticated machines could find a mile in a tank but real people??? Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: 15W-40
[Re: BigJim]
#803242
04/08/07 03:26 AM
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Joined: Jan 2007
Posts: 353
Mudrunner
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if you were to use lets say pensoil oil and then switched over to amsoil you would get better milage
WHEN THE ROAD ENDS, THE FUN BEGINS
97 sahara, 4in skyjacker lift, 33in tires, borla header & catback, 10in subs
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Re: 15W-40
[Re: playinmud]
#803243
04/08/07 04:48 AM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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if you were to use lets say pensoil oil and then switched over to amsoil you would get better milage How would one be able to tell? If that is really true, why? Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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