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Old 05-14-2003, 09:59 PM   #15
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Amsoil

I'm one of these people who just has to take the time to compare not only price but what is in the package as well as the reputation of the manufacturer. There are all kinds of posts on Amsoil, Royal Purple, Mobile One and Red Line on www.pickuptrucks.com forum. It's like saying which is better Chevy or Ford? I agree with the statement that any synthetic is better than dino oil because of it's ability to flow through the engine on startup (particularly in winter), its ability to fight viscosity breakdown under high heat and the fact that the synthetic base stockw that make up the Amsoil oils have synthetic molecules that are uniform in size rather than ragged as they are in dino oil. All this leads to better engine wear protection. Is an average driver who runs dino oil and changes every 3,000 miles going to see a difference vs. synthetic. Maybe and maybe not. Some individuals do not see a mileage gain and many do not see less wear on their vehicles because they sell them after a few years. The real test is at high mileage the engine will show less wear or if the engine is used under harsh conditions such as towing and high heat. If I bought and sold a vehicle each year then I wouldn't even put in synthetic, heck, I have heard of people who run the engine for a year and never change oil. I can't live like that because I drive a vehicle for up to 157,000 miles before I sell it.

As far as my 9,000 miles, filter change, 9,000 miles then both filter change routine goes, I figured what I would spend at Walmart on AC filters and 5 qts. of oil every 3,000 miles and that was what I ended up paying for the 7.25 qts. of synthetic and 3 filters over the 18,000 miles of use. I also felt better about taking 7.25 qts. of oil to the recycler rather than 30 qts. of dino oil and 6 AC filters. By the way, my dual filter bypass system added 1.25 qts. over the regular 5 qt. system.
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'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
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Old 05-14-2003, 10:04 PM   #16
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I agree, it's the whole Ford, Chevy thing all over again...at least we aren't including Dodge in the mix!

I think Amsoil is better than Mobil 1. Clearly Amsoil has a larger, documented change interval. Mobil 1 does not state an actual mileage.

Mobil 1 for the average "Joe" like me, costs less than Amsoil and frankly, I still change my oil every 3000-4000 miles especially when towing. I know I don't have to with either, but hey, I'm a bit old school, I don't let the plugs or the coolant go the full 100+k they say they can go. For me though, I use synthetics because they do take a bette beating than conventional and leave less residue, if any. Synthetic can take much higher temps an lower as well. Perfect for my application.

Both are great products. It's a choice and frankly, you won't go wrong with either.

Eric
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Old 05-14-2003, 10:17 PM   #17
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oil=beer

here in the salt belt our vehicles don't last that long.

unless it is a harley bathed in it's own oil mist and not normally driven in the winter.

for me, expensive oil = less money for beer!

b.t.w. i use valvoline in all my stuff, bike included. buck and a half a quart. however, i do use synth gear lube in the differential. 75w140, six bucks a quart at farm and fleet.

you guys can have the 40 dollar oil changes, thats 4 cases of beer!

john
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Old 05-14-2003, 10:22 PM   #18
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Again John, putting things into perspective. A man has to have priorities.

But as most in debt Americans, spend the cash on the oil and buy the beer on credit. If you happen to pass on, at least you pass on happy and it gets written off on the rest of us. So in essence, we all would have bought you your last round.

But I do like your thinking.....

Eric
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Old 05-14-2003, 10:43 PM   #19
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So John,
Where is one of your famous pictures with a Miller Genuine Draft sitting on top of a can of Valvoline?
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AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
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Old 05-14-2003, 11:07 PM   #20
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the gauntlet is tossed

alright,

gotta change my oil this weekend, i'll snap some pics.

i did not know my photos had gained such a rep!

i was gonna put a beer can in my post about drain valve repair.

maybe it could be like where's waldo? see if you can spot the beer in the post.

john
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Old 05-15-2003, 08:12 AM   #21
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Re: oil=beer

Quote:
Originally posted by john hd
here in the salt belt our vehicles don't last that long.

unless it is a harley bathed in it's own oil mist and not normally driven in the winter.

for me, expensive oil = less money for beer!

b.t.w. i use valvoline in all my stuff, bike included. buck and a half a quart. however, i do use synth gear lube in the differential. 75w140, six bucks a quart at farm and fleet.

you guys can have the 40 dollar oil changes, thats 4 cases of beer!

john
That's why I don't live in Detroit anymore.
In my stable is a all original unrestored 1970 Pontiac LeMans Sport convertible.
1975 GMC Jimmy it's a toy and I did do rust repair because it came from a rusty place)
1988 Suburban with 72k and NO Rust
1989 Honda Accord with NO rust.

We pay cash for vehicles and we don't like Air bags so all our vehciles are older and with the exception of the Lemans that I am about to start a restoration on, all our vehicles are regular drivers year round.

John you just live in the wrong place! You should move south and then you can drive you hog in December like they do down here. Plus it's closer to Daytona for Bike week.
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Old 05-15-2003, 09:04 AM   #22
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I'll chime in here...

My truck has Amsoil 5W30 in it's crankcase, and I changed the rear end lube at 3000 to Amsoil.

I have hear others say on pickuptruck.com that through oil tests, Mobile 1's additive package is shot at 4500 miles. I tried Mobile 1 on one change, with a brand X filter for 3000 miles, then changed it to a Mobile 1 filter. At 4500 miles the oil was very dirty. It might have stayed cleaner if it had a Mobile 1 filter to start with.

Most miles I have gone on an Amsoil change is 10K, since that is the mileage I put on in a year.
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Old 05-15-2003, 10:30 PM   #23
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Amsoil Action News

John,
Funny timing, the May '03 issue of the Amsoil Action News has an article on Amsoil 20W-50 synthetic motorcycle oil vs Harley Screamin' Eagle 20W-50 syn. motorcycle oil.
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AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
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Old 05-15-2003, 11:21 PM   #24
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Thumbs up Saw that

Craig,

I read that very same article as well with a great deal of interest.


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Old 05-16-2003, 05:41 AM   #25
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Re: Amsoil Action News

Quote:
Originally posted by davidz71
John,
Funny timing, the May '03 issue of the Amsoil Action News has an article on Amsoil 20W-50 synthetic motorcycle oil vs Harley Screamin' Eagle 20W-50 syn. motorcycle oil.
craig,

believe it or not, you do not want to use too slick of an oil in a harley.

they are roller bearing engines, the super slippery stuff makes the rollers skid instead of roll. you'll wreck your engine in short order.

last time i was at the factory i saw the drums of valvoline 20w50 they were putting in new motors. (not that i care what the factory does anyway) they said they use shell also.

most guys who pound harleys use aviation oils, usually areo shell 100w with excellent results.

when it is hot out i also use straight 50 or 60w valvoline. much thicker than that and kick starting on cold mornings is almost impossible.

i have used kendall 50 and 60w with good results too.

john
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Old 05-16-2003, 05:47 AM   #26
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oh yeah,

back in the 50's harley recomended adding kerosene to the oil to thin it out for below 10 deg. riding.

about a pint to a gallon.

it was done to keep ice from clogging the oil tank.

bet the current crop of psedo bikers wouldn't try that!

might get their designer chain drive wallets frosty!

john
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Old 05-16-2003, 04:13 PM   #27
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Question: Could I use synthetic gear lube in my limited slip differential in a Ford Explorer? Would I need to add an additive for the limited slip?


Secondly, I would not recommend using aviation oil in a Harley, or any other non-airplane. Airplanes...

- burn lots of oil so carbon buildup is prevented by using "ashless" oil, leaves less residue upon burning
- have their oil changed every 25 or 50 hours of use, so they only use dispersants, no detergents

I have owned a dozen airplanes and believe me "aviation" does not necessarily mean "good", just different.
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Old 05-16-2003, 04:51 PM   #28
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dmac,
Sure you can use synthetic gear lube with your limited slip. Amsoil says you do not have to use an additive with their 75W-90 gear lube while Mag-Hytec (sold me the finned aluminum extra capacity rear differential cover) tried to sell me additive with another brand of synthetic gear lube. I haven't noticed anything different and have run the gear lube for 13,000 miles now. I would follow the manufacturer's recommendation for the gear lube you use. I put Mobile One gear lube with an additive in my '92 Z71 because it was recommended.

John, not only have I learned a bunch about our Airstreams but I keep picking up more info on this forum than I ever dreamed of. I can't afford a Harley and dmac, I can't afford an airplane so you guys just cut it out with too much information. Just kidding!
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AIR #0078
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system
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