Ulp or premium? some blokes reckon that the extra cost is made up for in lower fuel consumption due to the extra octanes?
goanna
ulp
premium
Ulp or premium? some blokes reckon that the extra cost is made up for in lower fuel consumption due to the extra octanes?
Have tried the premium in my 60HP 4 stroke Merc and noticed no difference at all.
Dunno if would be different in a really big donk though.
I just use what the manufacturer recommended, viz standard full strength ULP.
.
Got a 50 Yamaha the fuel consumption is good but would like some more power from the jump
Unless your motor is programed to run a higher octane fuel then youur not going to see a improvement in economy or power...
But the beniffet in using high octane fuel is cleaner injectors and less carbon build up, especialy iff you troll a lot.... It also avoids E10....
IMO if you can afford to use a premium fuel, then do so.....
On another note, if your 4st has knock sensors the using premium can improve power and economy....
How do I know if my donk has a knock sensor?Its a DF70.Originally Posted by Jabba_
Cheers
I run Premium, as I do not trust that ULP will not have ethanol in it.
The V-Rod is designed to cope with 10% ethanol, and it's a stainless tank. But what about the lines/filter/water content? I have a racor, but when that fills up with water, where does the rest go? I don't trust it.
Cheers,
Tim
Carbon Really Ain't Pollution.
I run the 225 merc on premium and i ran my 40 4stroke yammie on it also.
I only run regular unleaded in the lawn mower and chainsaw.
Speak to a mechanical technician that specializes in your brand off motor.. NOT A SALE PERSON..
What about 2 strokes ? Same reservations regarding the E10/ethanol content of ulp or less of a concern than for 4 strokes ?
Tim....I know where you are coming from ...My guess is that large outlets like Coles and Woolworths will comply with the law and label any fuel with E as containing it... so I use their ULP pretty confidently. As for dodgy bros nobrand..? well they might well put an E blend out as ULP if they can buy it cheaper so your concern is justified I reckon.
As far as two-strokes go... and this is just "my" example!
In my service manual for my 1998 150V6 Johno carby two-stroke, it states:
Preferred FUEL: Any regular unleaded, regular leaded or PREMIUM gasoline having the recommended octane rating (Minimum 90 RON).
Acceptable FUEL: Any of the above gasolines with up to the following percentage alcohol by volume...
10% Ethanol or
5% Methanol with 5% co-solvents
REMEMBER that does not take into account our fuel tanks, lines and filters.
It is the "motor's" requirements!
Anthony
2010 Whittley Cruiser (Volvo Penta Power - 26 hrs)
2007Yamaha FXHO Cruiser PWC (165hrs) wife's
2006Yamaha FXHO Cruiser PWC (220hrs) mine
1999 Whittley Monterey 150V6 Johnson (181hrs) SOLD
There was a case three or four years ago of some BP servos substituting E10 into their ULP tanks. These were franchised servos owned by a dodgy bloke who landed in court for the deed but they were branded BP servos.
ie, Depending on local management or franchise ownership, it may not be the "dodgy bros nobrand" servos who are the bad guys.
It is because of that case that I am with TimiBoy to some extent in that whilst I still use standard ULP in my boat, I only fill it up at about three servos where I think that the management is OK.
One of those is the BP at Manly because they have signs on the pumps warning about using the right fuel for boats so I assume that they would not be wanting to jeopardise a large part of their business by doing anything that would dissuade the large number of boaties who fill up their boats there. They are not a cheap servo but they do sell to a lot of boats so I reckon that they are probably OK.
E10 is only good to use if your going to use all your fuel in a few days and leave nothing in the tank... If you alow the E10 to sit, it will draw in moisture and phase seperate.. Even the fuel in your carby bowl with phase seperate, and that will clog your fuel needles.. E10 will also eat away at your rubber fuel lines and gaskest in your carby.......
Stay away from it no matter what engine you have....
Premium only in mine,has never eaten standard.Now as far as power goes would you notice your car accelerating better on premium,I would think not so why would you expect your outboard to go any better, it is purely for the benefit of the cleaning of the injectors or keeping them clean and having a cleaner burn.Jim
Haines Signature "FinaLeigh" 580F 135 Optimax
CH 81 & 72 VHF
Depends on the car, I can notice a difference in my XR8, most lower powered cars are built to run on standard unleaded so are unlikely to gain anything.
As far as E10 goes, I won't even put the stuff in my car, let alone in the boat. I'll use premium most of the time, if I only need to top up a small amount and the premium bowsers are busy or empty, I'll put a bit of unleaded in.
Dave.
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