Where?

www.deerfieldmachine.com

Shipping is a flat $ 7.00

I run brad penn as well. Very good luck with it. I get it here. http://www.carshopinc.com/advanced_s...d+penn&x=0&y=0

No shipping cuz i pick up in store

would be $80 a case for me on the cheaper site above to have shipped to me. good deal per case but shipping blows.

Amsoil Dominator 10w30 in a 700hp NA 524 and 75w110 Extreme Gear in my drive. All Amsoil tests are certified, they're worth looking at.

Lock at mobil 1 racing 0W-50. http://www.mobiloil.com/USA-English/...ing_0W-50.aspx

It has more zinc and phosphorus than V twin see bottom of page. http://www.mobiloil.com/USA-English/...duct_Guide.pdf

List price is 16.33 QUART found it for 13.07 QUART. http://www.sparktecmotorsports.com/9...tm_content=pla

i have 10 qt pans,so 20 times 14.07=261.40,plus tax and 20 bucks for 2 filters,and i change every 12 hrs.il stick with the brap penn 20w50 that cost under 6 bucks a qt,and has been working for me for years,just my opinion.

Running Pennzoil 25w50 racing oil this year. If you like ZDDP, look into it.

4.49 per qt at oreillys

I agree 100% too.

Hey Mike, how is your day?
I'm saying this in a nice way. If you change your oil more often and pull motors more often for wear parts how are you saving money or time? If you are paying tax on oil something's wrong or your at walmart. They are the only place that charges tax on oil that I know of. Now that welmart taxes oil everyone will do it. Thanks walmart for lowering our standard of living as we save money and live better. Sorry for the hijack.

I had no intentions of getting invloved in this oil discussion period. However, I am from MA. watching the snow fall and I guess fall and fall some more. So, I was getting bored. If I may be so bold as to comment about price. I know in this economy we are all being hit. But, one serious afternoon of boating cost $200 in fuel and yet a lot of the post here tell me you don't want to spend the same $200 for an oil change that last, lets say 6 or more boating days! How much do your engines cost? Now I'm not a chemist or an engine builder, but certain things are just facts. If your engine has no issues and is being run under "normal" conditions than really almost any good quality oil will be ok. However, our boat engines see a much tougher life than an automotive engine and I doubt would be considered "normal" operating conditions. Our engines are under power all the time and usually being run at higher RPM's. So, with that said there really is a good case that can be made for using synthetic oil. Synthetic oil is not pumped out of the ground. It has NO impurities. It is made in a lab. I made this example on OSO once before. Let's assume you have a 1 foot square piece of glass. Go outside and try to find 50 pebbles as equal in size as you possibly can. Place them on the table and put the glass on top. Looking through the glass how many spots do you think will make contact? Probably 1/4 maybe 1/3. That is a mineral based oil. Now put 50 marbles on the table and place the glass on top. There will be 100% contact. That's synthetic oil. Your bearings are facing that same exact scenario. I don't know about you, but I would prefer that my bearing surface is completely in touch with the oil. Probably the big advantages, I would think, are a much better bonding of the oil to the surfaces being protected as well as a broader temperature range. Oh, by the way Brad Penn is a partial synthetic oil which is why it is cheaper than the synthetics. Not sure what partial means exactly.

Interesting...how long have you been running 10w30 in that engine? I was thinking of running 10w40 synt. in my 496/Whipple,since it's closed cooling,and i run a 120F
thermostat...just a thought....