View Poll Results: What oil do you use in your stock power big block ??
25-40
50
8.85%
15-40
28
4.96%
20-50
87
15.40%
straight 40
90
15.93%
straight 30
19
3.36%
syntec
9
1.59%
mobil 1
183
32.39%
amsoil synthetic
45
7.96%
R.P.
21
3.72%
OTHER
33
5.84%
Voters: 565. You may not vote on this poll

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POLL: which oil do you use ?

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Old 09-10-2005, 08:30 PM
  #101
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Default Re: POLL: which oil do you use ?

Swepco 20/50 306 oil , would'nt use anything else. awesome results with this oil in migh performance marine engines.
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Old 09-10-2005, 09:11 PM
  #102
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Quote:
Originally Posted by Mentalpause
I find it interesting that one of the worlds most renowned race engine builders would deliver their engines with an oil that is junk, versus an oil that would gain them 60HP.

I have the number for one of the main engineers at Ilmor, Maybe they will want to hire you.
...I think this was seen in his neighborhood
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Last edited by Hydrocruiser; 09-10-2005 at 09:43 PM.
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Old 09-11-2005, 02:22 PM
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Default Re: POLL: which oil do you use ?

Quote:
Originally Posted by Hydrocruiser
...I think this was seen in his neighborhood
Thats some funny stuff Hydro. What do you know about swepco?
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Old 09-11-2005, 03:56 PM
  #104
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Quote:
Originally Posted by 3600cat
Thats some funny stuff Hydro. What do you know about swepco?
Southwestern Petroleum Corporation...SWEPCO offers several oils including high-performance 15W-40 and 20W-50.

The 15W-40 is API rated CG/SJ; CF-2, Mack EOM and Cummins CES ...it would be great for marine use.

The 20W-50 is not API rated and here is what I have found out about it:

It is a high performance oil with a high level of friction reduction additives that started off as a paraffinic based oil as opposed to a PAO or ester. It's base has a lot in common with PAO's so the base oil is comparable to Mobil-1 or Amsoil's.

Additives:
Magnesium: 6
Phosphorous: 1384
Zinc: 1747
Calcium: 3227
Moly: 146

Cst's @ 100*C 70

This sample of Swepco 20W-50 would compare to the base and additives expected to be seen in Premium Synthetic oils such as Amsoil Severe Service 20W-50 Racing; Royal Purple 20W-50 racing; Redline 20W-50 or Mobil-1 20W-50 V-twin. I am awaiting test results from Alisyn as well.

All of the above oils including Swepco would reduce friction and keep bearings cool and are the best 20W-50's around.

Last edited by Hydrocruiser; 09-11-2005 at 08:32 PM.
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Old 09-11-2005, 04:59 PM
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Default Re: POLL: which oil do you use ?

Hydro you are exactly correct about Swepco, Does not mix with h2o, drive oil is also awesome, oil sticks to everything reducing wear upon initial start, looks as good after 30 hours as it does at new. I have found it to increase power somewhat and bottom line protect my large investment in my motors. Nortech has switched exclusively to it as well as numerous other builders. Ron Potter would not switch if it was'nt the best. just bought 11 cases of it, and have alot of high performance boaters have changed to it at LOTO. Wiggler
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Old 09-11-2005, 05:23 PM
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Quote:
Originally Posted by wiggler4490
Hydro you are exactly correct about Swepco, Does not mix with h2o, drive oil is also awesome, oil sticks to everything reducing wear upon initial start, looks as good after 30 hours as it does at new. I have found it to increase power somewhat and bottom line protect my large investment in my motors. Nortech has switched exclusively to it as well as numerous other builders. Ron Potter would not switch if it was'nt the best. just bought 11 cases of it, and have alot of high performance boaters have changed to it at LOTO. Wiggler
Anyone that knows offshore engines knows a premium synthetic oil with the right additives is what adds durability.

What does a quart of 20W-50 Swepco cost you guys and where are you buying it from?

Are you guys running K & N oil filters? They seem to be the best trade off between excellent flow and good trapping...certainly better than the Frams they say.
Dual bypass flitration is really the way to go however.

Last edited by Hydrocruiser; 09-11-2005 at 08:32 PM.
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Old 09-16-2005, 04:13 PM
  #107
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Default Re: POLL: which oil do you use ?

Hopefully their high performance oil is better than their low end commercial cheap sh!t. It's good to hear something about them, b/c we never hear anything about them unless they are cutting our nuts on price for the Mobil Delvac 1300 Super 15w40. God, you gotta love competition.
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Old 09-16-2005, 04:32 PM
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Default Re: POLL: which oil do you use ?

Quote:
Originally Posted by Mentalpause
I find it interesting that one of the worlds most renowned race engine builders would deliver their engines with an oil that is junk, versus an oil that would gain them 60HP.

I have the number for one of the main engineers at Ilmor, Maybe they will want to hire you.

It's amazing. Roger Penske sold Detroit Diesel for 2.5 billion... All Detroit's ever used is Mobil product. Roger also owns a big stake of Ilmor. They machine his team engines. All they use is Mobil 1. Trust me, ExxonMobil does not pay GM or any other company to put their oil in the cars. Everyone of them pay for that prodcut. The factory approval process is rigirous.

Now when I have been to ExxonMobil testing facilities, the difference in hp and wear are amazing when they break the engine's down. This is one of the first times, I have heard so many tierrible stories. There are many magic tricks in the oil business... The old egg beater tricks still seem to work. It all comes down to the personal preference, and as I have stated in the past "whatever gives you the warm fuzzy feeling inside"

Last edited by vandy021; 09-16-2005 at 04:35 PM.
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Old 09-16-2005, 06:32 PM
  #109
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Quote:
Originally Posted by wiggler4490
Hydro you are exactly correct about Swepco, Does not mix with h2o, drive oil is also awesome, oil sticks to everything reducing wear upon initial start, looks as good after 30 hours as it does at new. I have found it to increase power somewhat and bottom line protect my large investment in my motors. Nortech has switched exclusively to it as well as numerous other builders. Ron Potter would not switch if it was'nt the best. just bought 11 cases of it, and have alot of high performance boaters have changed to it at LOTO. Wiggler
Some say an emulsion is better than seperation for both water and gasoline contamination. I feel if water or gas is in there the best thing to do is test and get it out.
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Old 09-22-2005, 09:48 AM
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Default Re: POLL: which oil do you use ?

10 quarts Kendall GT 40 with one gallon of Lucas oil treatment and Fram filters. Change every 10-15 hrs.
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