What oil is everyone running
 

Is Synthetic ok to run in a relativily stock 502 MPI, I am going to try to run a little thicker oil to combat the high oil temp and lower oil pressure. I am currently using Mercury oil

Re: What oil is everyone running
 

Synthetic 20w-50 Mobil v-twin oil. About the best on the market if not the best, all the right additives for marine protection. Read up on the different oils in the tech section, Hydro has all the anwsers!!!

Re: What oil is everyone running
 

I have been running Mobil 1 20w 50 for years. Whether it was a Blower motor or my stock Merc 525.

I change it and the filter every 15 hours....

Oil is the Life's Blood of the motor !!!!!!!!

Re: What oil is everyone running
 

Mobil 1 15w50

Re: What oil is everyone running
 

I'm running Mobil1 15-50 Performance Formula. You can get it at Walmart in 5qt jugs for 23 bucks. They don't stock Mobil1 oil filters, so those come from Autozone.

I change mine every other race, probably 5-6 hrs run time. I'd like to try the 20/50 V-twin stuff, but with my frequency of oil changes, I need to get it at a reasonable cost, and the v-twin only comes in qt. bottles for something like $8 per bottle.

Hydrocruiser is the Man when it comes to oil. I think he blends it with bloody mary mix for breakfast. :)

Cheers,
Brian

Re: What oil is everyone running
 

I have run straight 40 valvaline for a long time and have no problems and have heard a lot of guys using mobil 1, I have a guy here that has a pair of 502's and runs Amsoil and his motors went over 1000 hrs. And he runs the hell out of it and changes the oil once a year.

Re: What oil is everyone running
 

I use to use mobil1 15-50 then switched to Royal Purple 20-50. some people say the stuff is to slippery for mild hyd roller cams[crane and Teague] but I have not noticed any problems

Re: What oil is everyone running
 

I like the Mobil-1 20W-50 even more now that I know it is moly free....moly is what makes an oil slick...Mobil decided to not use any as V-twins have wet clutches that may slip if moly is present...in the process they made us what I think may be the best Marine Synthetic oil to be had.

The lack of moly..a friction reducer.. and not an anti-wear additive.. is present to increase fuel economy...and nothing else really. Some manufacturers do not like heavy moly containing oils as moly is a "solid" and sulfur containing compound.

Mobil V-twin 20W-50 still has a base that takes the heat best of all synthetics; boron and ZDDP in heavier doses than the former Redcap; excellent detergency and dispersion agents along with an additive that leaves a long lasting coating to prevent dry starts after prolonged storage...oh and the price at Walmarts is down to $6.88/qt.

We are now hearing "teardown" stories that show main bearings look essentially unworn and new in appearance with those using this product. That is a direct indication that this oil will not thin out or shear down under heat and stress. Worn bearings result from broken down oil that could not handle piston shear and engine heat.

Adding some Marvel Mystery Oil Gasoline Additive to the gas in addition provides upper cylinder and valve protection and is a good idea unless your gas has Valvetech already in it.

That's the winning combo.

Amsoil 20W-50 and Redline 20W-50 are great but about $2.00+ more per qt now. Redline is heavy on the moly as is RP.

My feelings on an oil filter...may as well use an A/C 10-20 micron filter for $2.99 and not skimp on the oil. The best filters that trap 10 microns are the Mobil-1; Baldwin and Amsoil SD.

That is a years worth of going back and forth and the results were worth it. We have found the perfect combinations.

Now that auto oils are lacking in ZDDP they are junk for marine engines. Even some "racing" oils are cutting back along with straight weights....so I have to say if you are using conventional oil to stick with Mercury Oil as it has ZDDP in it per a call I made to them. You could use the synthetic blend Merc. if you don't want fully synthetic.

The choices are very limited...I am not saying to use 15W-50 Goldcap anymore because Bob's guys say it is shearing to a 10W-40 upon obtaining 1,000 mile UAO's. V-Twin won't shear. We now know Goldcap is going to be reformulated...Mobil is seeing this as well apparently.

Until the new Goldcap is out think V-Twin.

Re: What oil is everyone running
 

Hydro,

You are, THE EXPERT, and have the last word.......

This is a great forum !!!!!!!!!


Thanks !!!!!!!!!

Re: What oil is everyone running
 

...I also feel Mobil-1 75W-90 is the gearlube to beat. A VI of 150 vs. Amsoil's 120 and it flashes at 480*F about 60 degress higher than Amsoil....too bad Amsoil didn't leave their Series 2000 alone and not reformulate it to the thnner stuff they have now...

Re: What oil is everyone running
 

20w-50

Re: What oil is everyone running
 

Twin HP 500 running Valvoline VR1 Racing Oil 40Wt

Re: What oil is everyone running
 

Valvoline VR-1 20W-50 or straight weights have a good conventional base stock. But only .137 ZDDP and .23 calcium/magnesium anti wear agents. Also, lots of moly so it is a slick oil.

That's not too bad though low on ZDDP but the VI is only 130 which is about as good as you can get with a conventional oil.
These oils will shear down a grade or two viscosity wise as will most conventional and even some synthetics will as well.

Mobil-1 V-twin has a VI of 160+...anything around 150+ will not shear down. It has ZDDP levels around .25 and .20 boron which is the best of the best. Plus it is free of moly so your rollers spin.

Re: What oil is everyone running
 

...and the Mobil-1 v-twin is a bit better in specs than the Amsoil 20W-50 too...

I heard of a guy who ran a boat for a year with Amsoil..same guy? :D 1,000 hours on a boat is doable with these outstanding oils.

You really can run a season if you really wanted to with V-twin or Amsoil SD....just change the Mobil-1 or Amsoil SD filters a couple times a year is all.

I have gone all season my self...100 hrs as the V-twin oil liiked fine.

Are mercury oil filter any good
 

I have been running quicksilver filters any comments

Re: What oil is everyone running
 

Hydro - please tell me more... I just returned from a race in Sarasota and just read the updates to this thread. Before I left, I changed my oil and used the Goldcap 15w-50. I also bought extra from Walmart for my next oil change :(

I ran for 45 mins at (mostly) WOT, oil temps in the 260-280 range. I have the Smoke on the Water poker run planned for this weekend, and wasn't planing on changing before then.

Do I need to find some v-twin and change ASAP? What are the release timings for the reformulated Goldcap? Is there a "recall" in the works?

You da Man.

Thanks,
Brian

Re: What oil is everyone running
 

Thank you for the help Hydro. I am not hard on my engines at all. Would you suggest that I change to mobil-1 V-Twin? I have just over 200 Hours.

Re: What oil is everyone running
 

ttt

Re: What oil is everyone running
 

Amsoil 20W-50 with a amsoil filter. I pay $60 a case for it directly from amsoil. 502 Mag with 220 hrs., no problems yet. I change it every 25-30 hrs.

Re: What oil is everyone running
 

The Goldcap is being reformulated but not recalled. It will possibly go down to a 10W-40 I heard after some hard running...which is not the end of the world as any conventional oil does the same. It's just that redcap and V-Twin won't shear down.

Watch your oil pressure gage..if it thins out too much the pressure will be quite low and that is a sign to get it out sooner.

Re: What oil is everyone running
 

Amsoil is usually a good choice if you don't mind ordering it and the Amsoil SD filter is probably the best around too.

Re: What oil is everyone running
 

Our recent research showed that the best choices after the CH4 reformulation remain:

Mobil-1 20W-50
It's my favorite as it has more Boron and ZDDP than the Redcap formulation had as anti-wear agents and it does not use moly which is what could potentially cause flat-topping of rollers. It also has an additive that prevents corrosion even during extended storage and it holds up to 518*F which is highest of any oil. $6.99/qt at Walmarts. :D

Amsoil 20W-50
Solid base and good additives. Lots of ZDDP. No moly. Very similiar to Mobil-1 20W-50. $9.00.qt plus shippping.

Redline 20W-50
Although it has lots of moly it is a true ester based oil. It can be used in a jet turbine whereas any other might call for an early landing. It is said to mix with gasoline ...lots of gasoline and still remain a lubricant. Big blowers spew gas into the oil and that is a niche' for this oil. Lowest co-efficient of friction. The amount of moly and silicon in this oil make it a questionable choice for an aluminum engine.

Royal Purple
If you like lots of moly and ZDDP it's for you. Very slick and low co-effecient of friction. It's mostly a group iv oil with 20% group 2 carrier.

Mobil-1 15W-50 Goldcap
Still decent and with a shot of STP to increase ZDDP.. a decent oil to use until the reformualtion. Contains moly.

We noted earlier this week that Chevron UK now makes all the oil for Volvo-Penta. They now have a synthetic 15W-50 and a 75W-90 synthetic gearlube.

Valvoline Racing 20W-50 conventional oil has lots of ZDDP in it.

Filters:

Amsoil SD....10micron trapping... very good flowing

Mobil-1........10 micron trapping... good flowing

Baldwin.......under 20 micron trapping...good flowing

Fram HP......under 20 micron trapping....excellent flowing

K & N..........25 micron trapping....very good flowing

WIX............under 20 micron Trapping...good flowing

Mercury HP..about 20 micron trapping... good flowing


Gearlube....

It's about the only area we don't have nailed down yet.
The one thing about Mercury HP is it does prevent corrosion or rust if water gets in....we can not say that about the rest....yet..

I may still be hung up on Mercury HP...as I know many of you are. If the internals are dry synthetics run cooler...if the drive gets wet it looks like Merc HP protects better from what I have read.

Moly in the gearcase is a good thing....so RP and Redline shine in that respect. Mercury HP has antimony which is excellent.

I don't like the large amount of calcium Redline has which gives it that creamy appearance....I would like to see RP up their base a bit more...I do like Mobil-1 group iv PAO formulation. The former Amsoil formulation failed Bob's rust test with a nail...is the new formulation more rust or corrosion resistant??

I still think Mercury HP is the one to beat.

Re: What oil is everyone running
 

Hydrodude.............

Which Amsoil 20W-50 are you referring to?
Series 2000 or High Performance?
Is there a big difference in the amount of ZDDP added
to these two products?
Oh yeah by the way,
I did know that Amsoil uses Mobile base stock.
I had spoken to an Amsoil tech person and was told
by him that they buy base stock from Mobile.
Thanks,
Dennis

Re: What oil is everyone running
 

Thanks Hydro. Oil pressures are still strong. I'll have a boat full of Konrad boyz along for SOTW, so I'll be running it easy. Was planning a change after then anyway.

518 degrees for v-twin... thats impressive. Looks like it's time to make a switch. Any idea if Walmart plans to sell it in the 5qt jugs? It's interesting that they have a relationship with ExxonMobil where they can be the sole supplier of these jugs. Goldcap is going for $22.95, which works out to be $4.59/qt. Not a bad price.

Once again, you da Man.

Thanks,
Brian

Re: What oil is everyone running
 

HELP..... Sorry to be dense here.

I am trying to switch over to Mobil syn. This post has touted Mobil-1 20w-50 yet all oil suppliers here Indiana say there is no Mobil-1 20w-50 just Mobile (non-syn) & Mobil site does not show a Syn 20w-50, please help, I can't find quantity of vtwin and need to change oil Friday. I am told Mobil is blend/dino and Mobil-1 is syn

Do I go with Mobil-1 15w50.

Re: What oil is everyone running
 

I used red cap mobil 1 15w50 thats all I could find @ Walmart in Canada - 600HP engines WIX Filter

Re: What oil is everyone running
 

The Amsoil (TRO) Series 2000 $8.99/qt

Re: What oil is everyone running
 

The Mobil-1 20W-50 is V-Twin Fully Synthetic motorcycle oil.

The 15W-50 is low on ZDDP and is being reformulated...it is a decet oil if you add back some ZDDP...STP will do that.

Re: What oil is everyone running
 

If Mobil continued making Redcap I would not be telling you to use V-Twin ( unless you wanted extra protection) here in the goold 'ole USA. :D

Redcaped ruled...but in the US our standards required getting the ZDDP out...we have Goldcap which is being reformulated as it shears too much they are finding.

Wonder if Redcap will continue to be avaviable in Canada and if so can we order it?? :D

But again Walmart is offering V-Twin for $6.99/qt so why bother??

Re: What oil is everyone running
 

Hmmm... :eureka: :cool:

Re: What oil is everyone running
 

The base in 15W-50 is not as good anymore either...get V-Twin or use Amsoil Series 2000 or Redline.