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View Poll Results: What Viscosity Motor Oil Do You Use?
5W20 3 0.69%
5W30 17 3.92%
10W30 146 33.64%
10W40 134 30.88%
20W50 74 17.05%
SAE 30 Wt 9 2.07%
What ever's on sale 8 1.84%
Not listed 43 9.91%
Voters: 434. You may not vote on this poll

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  #101  
Old 01-11-2012, 08:15 AM
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Jeepguyp Jeepguyp is offline
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STP

I couldnt get my Dad to stop putting blue-bottle STP in our old 77 Olds(R.I.P. , now in China in a smelt).... but STP has paraffin(wax)... accumulative
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1977 CJ5 "Lulu"
360\5-SPEED GRANNY\DANA300\ DANA 44s
DETROIT \POWERLOCK 4.10
35" tires, and LOTS other stuff
77 J-10 401\Q trac "Thadeus"
77 Waggy 401\Q trac "Bertha"
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  #102  
Old 01-11-2012, 12:42 PM
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I've seen what happens when paraffin builds up in engines. NOT pretty, and engine rebuilders throw a screaming fit when they find it. Didn't know STP engine treatment had it in it.

I'm not driving a Mercedes, I'm driving a '76 360 and '81 258 (not at the same time, of course) both AMC. I would like to make sure I'm running the proper oil to help them live a long and healthy life. The 360 leaks too much to pour out expensive synthetic on the ground. The 258 will get freshened up w/ all new seals and gaskets but just because it's "synthetic" does it mean it will have everything the engine needs?

Last I recall was that Dupont threw a screaming fit over people putting Teflon in their motors via those oil filters that came out w/ it in there about 15 or so years back. They said something about "do not put Teflon in an internal combustion engine, it does not belong there." I try to be wary of snake oil, myself.

I'm also curious about the oil filter magnets, though for the price tag I'll just bust up an old speaker magnet and stick the chunks to the side of the oil filter one of these days. Figure surely it couldn't hurt...
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  #103  
Old 01-11-2012, 01:26 PM
95steel 95steel is offline
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Quote:
Originally Posted by rreed
I've seen what happens when paraffin builds up in engines. NOT pretty, and engine rebuilders throw a screaming fit when they find it. Didn't know STP engine treatment had it in it.

I'm not driving a Mercedes, I'm driving a '76 360 and '81 258 (not at the same time, of course) both AMC. I would like to make sure I'm running the proper oil to help them live a long and healthy life. The 360 leaks too much to pour out expensive synthetic on the ground. The 258 will get freshened up w/ all new seals and gaskets but just because it's "synthetic" does it mean it will have everything the engine needs?

Last I recall was that Dupont threw a screaming fit over people putting Teflon in their motors via those oil filters that came out w/ it in there about 15 or so years back. They said something about "do not put Teflon in an internal combustion engine, it does not belong there." I try to be wary of snake oil, myself.

I'm also curious about the oil filter magnets, though for the price tag I'll just bust up an old speaker magnet and stick the chunks to the side of the oil filter one of these days. Figure surely it couldn't hurt...

Rick,

Your in Tejas now, run rotella and you and your engine will be happy. If it gets cold long enough (Dec-Feb/March) run rotella synth 5w40 for colder months.

Most oils are a parifin based oil, people blamed crapy pvc designs and bad maintenance on oil. Yes some oils are better than others, not going to start that arguement... Our engines will require oil changes more often if used for short trips because the engine won't be able to get warm enough to boil out condensation (what causes most sludge build ups). I am not a big believer in oil additives, I'd rather buy better oil.

Adam
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  #104  
Old 01-16-2012, 03:18 PM
codyyy codyyy is offline
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I haven't ran my old engine long enough to know the effects of what oil to use, but I put in 10-30 as that is basically what it says to use in the Haynes manual I have. I might decide to put STP or Lucas Oil Break-In for the zinc content but I'll hold off for now, I'm keeping it simple.
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  #105  
Old 01-17-2012, 10:55 AM
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Herk Herk is offline
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Rotella T6 5w40 synthetic in EVERYTHING.

I don't worry too much about oil pressure, I have the relief valve set at only 45 PSI on my Gladiator. I am more concerned about how fast I get pressure (circulation) on cold starts, how soon it drops to the regulated pressure when warm, and how well it maintains regulated pressure.

Viscosity is RESISTANCE TO FLOW, more is not better. Also since the oil pressure tap on our engines is typically upstream of any bearings, that high pressure may be indicating that oil isn't getting to where it's needed.
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  #106  
Old 01-19-2012, 10:21 AM
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Jeepguyp Jeepguyp is offline
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Quote:
Originally Posted by Herk
Rotella T6 5w40 synthetic in EVERYTHING.

I don't worry too much about oil pressure, I have the relief valve set at only 45 PSI on my Gladiator. I am more concerned about how fast I get pressure (circulation) on cold starts, how soon it drops to the regulated pressure when warm, and how well it maintains regulated pressure.

Viscosity is RESISTANCE TO FLOW, more is not better. Also since the oil pressure tap on our engines is typically upstream of any bearings, that high pressure may be indicating that oil isn't getting to where it's needed.

__________________
AMC V-8 FOREVER
1977 CJ5 "Lulu"
360\5-SPEED GRANNY\DANA300\ DANA 44s
DETROIT \POWERLOCK 4.10
35" tires, and LOTS other stuff
77 J-10 401\Q trac "Thadeus"
77 Waggy 401\Q trac "Bertha"
64 Stude Avanti 289 R2---ALIVE!
91 Dodge W350 5.9 Cummins
2005 Yamaha XT225
64 Avanti#2(R1)...Under construction
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  #107  
Old 02-11-2012, 07:29 AM
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Jeepguyp Jeepguyp is offline
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Glitch

weird.... I posted above WEEKS AGO and it says (on the forum header) I did it TODAY..... glitch in the machine
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AMC V-8 FOREVER
1977 CJ5 "Lulu"
360\5-SPEED GRANNY\DANA300\ DANA 44s
DETROIT \POWERLOCK 4.10
35" tires, and LOTS other stuff
77 J-10 401\Q trac "Thadeus"
77 Waggy 401\Q trac "Bertha"
64 Stude Avanti 289 R2---ALIVE!
91 Dodge W350 5.9 Cummins
2005 Yamaha XT225
64 Avanti#2(R1)...Under construction
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  #108  
Old 02-15-2012, 02:28 AM
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18cherokee 18cherokee is offline
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just switched to 10w50 semi synthetic (also an lpg/propane special blend) on my rebuilt engine. also use a valve saver system.
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  #109  
Old 02-15-2012, 07:43 AM
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Jeepguyp Jeepguyp is offline
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valve saver

Valve saver for the LPG? whats the system? and what kinda oil has 10-50?
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AMC V-8 FOREVER
1977 CJ5 "Lulu"
360\5-SPEED GRANNY\DANA300\ DANA 44s
DETROIT \POWERLOCK 4.10
35" tires, and LOTS other stuff
77 J-10 401\Q trac "Thadeus"
77 Waggy 401\Q trac "Bertha"
64 Stude Avanti 289 R2---ALIVE!
91 Dodge W350 5.9 Cummins
2005 Yamaha XT225
64 Avanti#2(R1)...Under construction
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  #110  
Old 02-15-2012, 03:13 PM
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SD_RED SD_RED is offline
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Z-Rod

Amsoil Z-Rod 10W30 in a 81 waggy 360 daily driver, central Texas. Very high zinc content.

Here's the link:
http://www.amsoil.com/storefront/zrt.aspx
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  #111  
Old 02-15-2012, 03:19 PM
CJ5 CJ5 is offline
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I use Valvoline SAE30, always have. Ihave used it in all my motors, old and new and never had any problems.
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  #112  
Old 02-15-2012, 06:06 PM
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Great Pharoah Great Pharoah is offline
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NAPA 15-50 Synthetic

I changed from motorcraft 10w 30 to NAPA 15w50 full synthetic. Seems to work good I don't see any leaks. I Don't know who the vendor is but it's not one I'm familar with. but as long as it works, who cares.
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  #113  
Old 02-15-2012, 07:12 PM
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svining svining is offline
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Wink In the shop manual

It says that our Northern friends should use 20 w Oil in 0 degree temps. So I was musing about using 5-20 Mobil 1, for better milage. Now I know at 0 degrees you need the Oil thin. But after your motor is warm you still got 20 weight oil in there. So I don't see why some are so worried about thin oil.

Gets where it needs to, fast and improves milage. I haven't heard, but I'm no expert, that motors in the Northern tier, wear out fast because they use thin Oil. Anybody in Minot ND got their ears on today. Do your motors wear out fast in Canada, if your not out shoveling snow give a chime!




Quote:
Originally Posted by Great Pharoah
I changed from motorcraft 10w 30 to NAPA 15w50 full synthetic. Seems to work good I don't see any leaks. I Don't know who the vendor is but it's not one I'm familar with. but as long as it works, who cares.
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  #114  
Old 02-15-2012, 07:18 PM
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18cherokee 18cherokee is offline
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Quote:
Originally Posted by Jeepguyp
Valve saver for the LPG? whats the system? and what kinda oil has 10-50?

Valve Saver

10w50 oil
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  #115  
Old 03-25-2012, 07:37 PM
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svining svining is offline
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Talking I saw it today!!

Walmart has Mobil 1, 0-30 weight, improved milage formulation, I hoping to get 20 mpg after the next Oil change






Quote:
Originally Posted by 18cherokee
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  #116  
Old 03-25-2012, 08:10 PM
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247pia 247pia is offline
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Quote:
Originally Posted by svining
Walmart has Mobil 1, 0-30 weight, improved milage formulation, I hoping to get 20 mpg after the next Oil change

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  #117  
Old 03-26-2012, 06:29 PM
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There's a conspiracy: They're hiding the 0 friction, lifetime oil. (Along with the 100 mpg carbs)
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  #118  
Old 03-26-2012, 09:00 PM
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KJ Ryu KJ Ryu is offline
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Mobile1 5w-30 in everything I own, except my Ski-doo. It gets XPS Syn blend. That may change when the warranty is up.

My Liberty gets 21.5mpg on the highway with a 3" lift and 31" tires (stock is about 28.9") and no gear change. I attribute most of that to the Mobile1. I kept track, using several oils through a few changes before trying another. Have yet to try Amsoil, though. Oh, Royal Purple syn diff oil makes a lot of difference, too!
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2005 KJ, Hit-n-Run, 2am 6-17-2012, Totaled.
1977 SJ J10, 2v304, T18, D20, 37x14s, SOA & SF on tons, still ugly Occasional driving!
1978 SJ Wagoneer, 360, QT, 33x12.5s, lift by Sawzall NOT Running
1993 D150 "1-legged dog" DD

Quote:
Originally Posted by Mars
One man's trans leak is another's penetrating oil
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  #119  
Old 03-26-2012, 09:42 PM
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svining svining is offline
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Wink As usual Rich!!

I guess you didn't get the memo on the special chip that doubles horsepower and triples milage for $29.95




Quote:
Originally Posted by KJ Ryu
Mobile1 5w-30 in everything I own, except my Ski-doo. It gets XPS Syn blend. That may change when the warranty is up.

My Liberty gets 21.5mpg on the highway with a 3" lift and 31" tires (stock is about 28.9") and no gear change. I attribute most of that to the Mobile1. I kept track, using several oils through a few changes before trying another. Have yet to try Amsoil, though. Oh, Royal Purple syn diff oil makes a lot of difference, too!
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  #120  
Old 03-26-2012, 10:03 PM
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KJ Ryu KJ Ryu is offline
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Quote:
Originally Posted by svining
I guess you didn't get the memo on the special chip that doubles horsepower and triples milage for $29.95

I did but it went to File 13. I base my results on my own research. YMMV!!!

HP doesn't seem to have gone up much but, I've never dyno'd it or anything. It will git when you gun it, tho!
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Ron

2005 KJ, Hit-n-Run, 2am 6-17-2012, Totaled.
1977 SJ J10, 2v304, T18, D20, 37x14s, SOA & SF on tons, still ugly Occasional driving!
1978 SJ Wagoneer, 360, QT, 33x12.5s, lift by Sawzall NOT Running
1993 D150 "1-legged dog" DD

Quote:
Originally Posted by Mars
One man's trans leak is another's penetrating oil
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