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#2090828 - 11/30/10 03:55 AM What is the thickest Motor Oil
HangerHarley Offline


Registered: 06/10/10
Posts: 1239
Loc: Duval Co. Jax FL, USA
Ive seen Straight SAE60 in Valvoline VR1.

What is THAT used for?

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#2090833 - 11/30/10 04:03 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
Silk Offline


Registered: 07/26/03
Posts: 2185
Loc: New Zealand
I've used Penrite 25-70 before.
_________________________
1994 Mercedes C220 - Shell HX7 10/40
1987 BMW R65 - Shell HX3 20/50
1990 Nissan NX Coupe - She'll Be Right

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#2090835 - 11/30/10 04:08 AM Re: What is the thickest Motor Oil [Re: Silk]
HangerHarley Offline


Registered: 06/10/10
Posts: 1239
Loc: Duval Co. Jax FL, USA
Originally Posted By: Silk
I've used Penrite 25-70 before.


shocked For what?

And in the USA?

Knew someone put Straight-50 in their big engine sports car before. Engine ran super smooth, and yes this is Summer.

Maybe this is why i like Thick oil?

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#2090837 - 11/30/10 04:16 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
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#2090851 - 11/30/10 05:53 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
MoparDak05 Offline


Registered: 09/16/09
Posts: 244
Loc: yes
Originally Posted By: HangerHarley
Ive seen Straight SAE60 in Valvoline VR1.

What is THAT used for?


Before I switched to Amsoil, I was using 60wt VR1 in my Shovelhead.

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#2090854 - 11/30/10 05:59 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
jrenkas Offline


Registered: 01/30/09
Posts: 70
Loc: northern WI
Ferrari specs 10w60 in some of their cars, hence Pennzoil Ultra 10w60.

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#2090872 - 11/30/10 06:40 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
BigCahuna Offline


Registered: 09/29/09
Posts: 1313
Loc: Deep in the heart of Jersey
I used to run straight 70 wt oil in my old Harley.I don't know of any modern motor that specs that weight. It had alot of hang time when pouring it cold.,

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#2090875 - 11/30/10 06:44 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
bmod305 Offline


Registered: 06/23/08
Posts: 185
Loc: Minnesota
I don't know if it is made anymore but Kendall Nitro 70 was the thickest I have ever seen. Designed for old Harley s and nitro burning drag cars. I believe it is now sold under the Brad Penn label.

Dave


Edited by bmod305 (11/30/10 06:45 AM)

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#2090876 - 11/30/10 06:46 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
bmod305 Offline


Registered: 06/23/08
Posts: 185
Loc: Minnesota
Conoco Phillips still shows a data sheet for Nitro 70

http://www.conocophillipslubricants.com/...20TDS%20Web.pdf

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#2090907 - 11/30/10 07:35 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 10077
Loc: South Texas,USA
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Amsoil 80W90 GL5(rear diff)
Mobil 1 ATF
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#2090943 - 11/30/10 08:31 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
mpvue Offline


Registered: 07/12/07
Posts: 2695
Loc: Easton, PA
IIRC, when I looked under the hood of my friend's M5, it had a sticker specing 10W60.
I guess you could always go to 90wt gear oil if you like it thick smile
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#2090959 - 11/30/10 08:55 AM Re: What is the thickest Motor Oil [Re: aquariuscsm]
HangerHarley Offline


Registered: 06/10/10
Posts: 1239
Loc: Duval Co. Jax FL, USA
Originally Posted By: aquariuscsm


Wow !!!

Quote:
IIRC, when I looked under the hood of my friend's M5, it had a sticker specing 10W60.


Very Possible.

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#2090972 - 11/30/10 09:18 AM Re: What is the thickest Motor Oil [Re: mpvue]
Zaedock Offline


Registered: 09/10/05
Posts: 3850
Loc: Massachusetts
Originally Posted By: mpvue
IIRC, when I looked under the hood of my friend's M5, it had a sticker specing 10W60.
I guess you could always go to 90wt gear oil if you like it thick smile


90wt gear oil is about a 40-50wt motor oil.
_________________________
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1992 YJ "The Heep"/1994 Olds Cutlass Ciera 3.1/auto
1975 Ford Bronco/1959 Willys CJ5/20XX Custom rock crawler

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#2091020 - 11/30/10 10:15 AM Re: What is the thickest Motor Oil [Re: HangerHarley]
addyguy Online   content


Registered: 09/08/05
Posts: 13455
Loc: Canada
Straight-70 weight is the thickest motor oil grade I've ever heard of.

Even though a 25W-70 or 40W-70 and a straight-70 are the same at operating temperature; a straight-70 would be thicker at lower temps, and therefore I think it wins as "The Thickest Motor Oil" you can get.....

For fun, I would LOVE to get my hands on some 25W-70 or 40W-70 and do a short run during the hottest part of the summer, just to see how the car would run. Penright does sell oils in Canada, and I think these two oils are offered....hmmm....

:P
_________________________
2003 Mazda Tribute LX V-6, 176k miles.
Castrol Edge SPT 0W-20; Fram EG2.

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#2091103 - 11/30/10 11:37 AM Re: What is the thickest Motor Oil [Re: addyguy]
HangerHarley Offline


Registered: 06/10/10
Posts: 1239
Loc: Duval Co. Jax FL, USA
Originally Posted By: addyguy
Straight-70 weight is the thickest motor oil grade I've ever heard of.

Even though a 25W-70 or 40W-70 and a straight-70 are the same at operating temperature; a straight-70 would be thicker at lower temps, and therefore I think it wins as "The Thickest Motor Oil" you can get.....

For fun, I would LOVE to get my hands on some 25W-70 or 40W-70 and do a short run during the hottest part of the summer, just to see how the car would run. Penright does sell oils in Canada, and I think these two oils are offered....hmmm....

:P


Im tempted to put that 40W-70 in in July out here (or August!!!) When it is a nice consistent steamy humid 90 degrees and better.

Im only slightly scared at this?

One thing is for sure.. it makes 20W-50 - even the Valvoline stuff - look like GC. thumbsup

Now, here is another question.. will an old 10W-40 engine SURVIVE 10W-40? (Think old, old Monster V8 fro, a time of real engines that have big huge blocks and MASSIVE Displacement.. 400ci or better.)

I thought if you put Lucas in it (Straight 80-wt, looks like pancake syrup?) it would also be almost that thick.

Hmmmmmmmm..............

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