Re: POLL: which oil do you use ?
 

I agree that you may be able to run a synthetic oil for a slightly longer period. The problem is most marine engines run very rich, which leads to fuel in the oil, which breaks down the oil, etc...
Tyler Crockett turned me on to Royal Purple years ago and I've used it since. It seemed most of the Factory 1 and 2 offshore race teams used Mobil-1 15w-50 or
Royal Purple 20w-50 unless they were going for a kilo record, then it was 5w-30 or something like that. I no longer use Fram filters on ANYTHING. I will however use AC Delco filters on my trucks and some boats, but nowdays almost all of my boats and my customers boats run Wix Fuel/Water filters and Wix Racing oil filters.
If anyone has a better oil, additive or filter experience, I'm always open to listen and look.
In fact, I'm curious about this "SWEPCO" oil...

Re: POLL: which oil do you use ?
 

Pennzoil GT Performance Racing engine oil. 25W50

Re: POLL: which oil do you use ?
 

Dean, is it a synthetic or regular?

Also, how does it compare to Valvoline Racing 20/50 or their 50w racing oil?

Frank

Re: POLL: which oil do you use ?
 

to Blitzkrieg;

Is your dissatisfaction with Mobil 1 based on the regular formulations, or is it based on the "V twin 20w-50" which is the consensus favorite of Hydrocruiser and others?

Please clarify.
Thanks, Jim

Re: POLL: which oil do you use ?
 

20/50. Or whatever my mechanic reccommends

Re: POLL: which oil do you use ?
 

Non-Synthetic racing grade oil. I do not use any synthetic engine oils . No comparison in my eyes, but just an opinion also. It is important to match oil pressure and bearing oil clearence according to what your application is, how hard is the engine going to be run, horsepower and load levels, ect. We have been very successful with Pennzoil and we stick with it. If it works for you, then stay with what is working.

Dean

Re: POLL: which oil do you use ?
 

ditto

Re: POLL: which oil do you use ?
 

Thanks! I may try it on my next oil change.

I read thru the product literature and it say's that it reduces cam lobe wear. Since I have flat tappet cam's this sounds like it could be a good thing for me.

I had synthetic in my motor when I wiped out a cam lobe last season. My engine builder said to only use dino oil after the rebuild.

Frank

Re: POLL: which oil do you use ?
 

M-1 V-twin - engine, 50 hour changes
M-1 302 - filter
M-1 75-90 - outdrive, 50 hour changes

my engine builder loves it :evilb:

Re: POLL: which oil do you use ?
 

....that's because engine builders like to sleep at night without the beeper going off too often...and with all the data we got last season pm'd to me... it is obvious that 50 hour changes are practical with M-1 EP or V-twin!! That dramatically cuts the labor cost and hassle factor as well.

V-twin..is THE 2,000lb gorilla who rules the Offshore Lubrication Jungle. :cool:

Re: POLL: which oil do you use ?
 

Royal Purple 40wt . 502 mag MPI .

Re: POLL: which oil do you use ?
 

nORTECH BLOWER motors swepco 20/50 per Ron Potter

Re: POLL: which oil do you use ?
 

I couldn't vote 2 categories so I just voted Amsoil.

2nd season with the new motor and 1st season running Amsoil Severe Service 20w-50. So far I love it. My oil pressure is more consistant, not super high when cold/warming up, but stays up and solid once it's hot. I also used to top off about 1/2 quart ever 2-3 hours. So far I'm at almost 8 hours on this oil and it's still good. It may be down slightly but still in good shape and just starting to get some color. I'll probably change it at 10-12 hours just to flush the old Valvoline out more.

This Amsoil is like a cherry syrup and even smells sweet. :D So far I'm a believer.

Re: POLL: which oil do you use ?
 

Mitch, just put your used oil in quart jugs, take it to the truck stop at exit 49 and tell the truck drivers that with the new low sulfur fuel that they need more lubrication in the top end. Then sell them your special blend for $3.95 per qt. Tell them to dump one qt in each tank every time they fill up :drink: No harm done, JB

Re: POLL: which oil do you use ?
 

M1 20 50 V Twin , Cheapest place to buy it is Wall-mart. Its in the Motor cycle section. Its not with the other oils

Re: POLL: which oil do you use ?
 

Could I get all of you guys that change your Mobil 1 at 10 hrs and under to send me your used oil? :D I'll put it in my motors for some research :evilb:

Re: POLL: which oil do you use ?
 

wal-mart no longer carries 5 quart jugs of 15-50.... :(

Re: POLL: which oil do you use ?
 

Johnson+Johnson baby oil 40 wt. :evilb:

Re: POLL: which oil do you use ?
 

Same here.

Re: POLL: which oil do you use ?
 

Motor oil I use Mobile 1 20-50 V twin with a Mobile 1 filter 302 I believe.

Re: POLL: which oil do you use ?
 

Synthetic Oil does not draw the heat out of the valve springs as well as "real" motor oil.

Gregg Reichman

Re: POLL: which oil do you use ?
 

For those of you that mentioned running A/C Delco filters. Any idea what the part # would be for the 496's?

Re: POLL: which oil do you use ?
 

Quaker State 20w50 HP

Re: POLL: which oil do you use ?
 

Use water instead...it transfers heat even better than conventional oil dude.

....fyi.. it has been shown at length that synthetic oil decreases heat. More than conventional oil could ever remove...


...good comeback? :p

Re: POLL: which oil do you use ?
 

Kendall racing 20w-50 with Fram HP-6 filters. Using parallel dual bell housing coolers on a Bravo set-up. 750 HP 509 CI. Hi flow system and always cool. :cool:

Re: POLL: which oil do you use ?
 

AC: PF1218, PF932

Re: POLL: which oil do you use ?
 

Thanks Hydrocruiser!

Re: POLL: which oil do you use ?
 

I've been using Mobil 1 15w50 in a full roller motor for 7 seasons with no problems. This fall during the winterization process I filled it with Mobil 1 v-twin.
Dave

Re: POLL: which oil do you use ?
 

What's the story with that engine? Go back to post #5 for the photos.