Premium Unleaded

Submitted: Tuesday, Feb 21, 2006 at 09:30
ThreadID: 30998 Views:1421 Replies:6 FollowUps:5
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Hi,
Seeking some advice a bit outside of whats normally discussed on the forum. I have a 9/10 yo 5 hp Honda fire fighting pump on my dam and am constantly having problems with it in regards to dirty jets etc.
It has been suggested that I run premium ulp instread of unleaded in it to keep it clean.
Is this an option?
Thanks
Howard.
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Reply By: Barnesy - Tuesday, Feb 21, 2006 at 09:38

Tuesday, Feb 21, 2006 at 09:38
My old car was a 1984 toyota corona, i'd could run it on super or unleaded but always got engine "pinging". Tried premium and it ran beautifully. More power and economy too.
Great fuel.
Barnesy
AnswerID: 156204

Follow Up By: mattlobie - Tuesday, Feb 21, 2006 at 20:44

Tuesday, Feb 21, 2006 at 20:44
I had the same issue with my 83 corolla. I believe it's due to octane of the fuel. Leaded fuel is around 96 octane whereas standard unleaded is around 91. But because premium unleaded is around 95, the old leaded engines tend to prefer it. 98 octane gear like shell optimax and bp ultimate will make it go even better, if you're prepared to pay the extra.

matt
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FollowupID: 410409

Reply By: Member - Tony G (ACT) - Tuesday, Feb 21, 2006 at 10:08

Tuesday, Feb 21, 2006 at 10:08
I use a Honda FF 5.5 hp to pump shed tank water up to a 22,000 gal tank and every 3rd fill use premium. It runs and starts a lot better after using the premium.

I also run the 4 wheeler and slasher which is a 15 hp honda on premium.
AnswerID: 156208

Reply By: flappa - Tuesday, Feb 21, 2006 at 10:20

Tuesday, Feb 21, 2006 at 10:20
Premium has an inbuilt cleaner mixed in mainly for injectors , but , I cant see why jets wouldn't respond the same.

You still need to have the fuel and tank as clean as possible though . . . it wont work magic.
AnswerID: 156211

Reply By: Flash - Tuesday, Feb 21, 2006 at 12:09

Tuesday, Feb 21, 2006 at 12:09
The other thing is that as fuel gets stale, evaporates etc it's octane drops.
If you start with premium it will last longer before it's so stale your pump won't like it. Plus, for example if you add half a tank of new premium to half a tank of older fuel it lifts it closer to what new fuel should be like. I do that with my chain saw and compressor- they run much better.
cheers
AnswerID: 156227

Reply By: TerraFirma - Tuesday, Feb 21, 2006 at 13:23

Tuesday, Feb 21, 2006 at 13:23
Yes premium unleaded will last longer, I wouldn't recommend using Shell Opitmax with 2 strokes, it has a tendancy to foul plugs. You can also use Nulon Petrol and Injector Cleaner, $9.90 from Super Cheap, it does a great job cleaning jets and carbies.
AnswerID: 156244

Follow Up By: Member - Bill S (NSW) - Tuesday, Feb 21, 2006 at 19:57

Tuesday, Feb 21, 2006 at 19:57
Hello ALL, I am back so look and learn,this whole scenerio wont happen IF??????? I read these things and think BAD luck. I most certainly dont have any such problems with my machinery even if my chainsaw has not started for 6 months same fuel second pull WOW// as does my water pump.my bikes my tractor my robin powered compressor the list goes on.And it certainly is not Nulon Petrol inj cleaner availing this effect.

REgards BILLS
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FollowupID: 410389

Follow Up By: Wombat - Tuesday, Feb 21, 2006 at 21:03

Tuesday, Feb 21, 2006 at 21:03
He's baaaack!
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FollowupID: 410413

Follow Up By: Member - Blue (VIC) - Wednesday, Feb 22, 2006 at 01:22

Wednesday, Feb 22, 2006 at 01:22
You noticed too, us Triton folk are cluey...
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FollowupID: 410475

Reply By: TerraFirma - Wednesday, Feb 22, 2006 at 11:32

Wednesday, Feb 22, 2006 at 11:32
The only thing that hasn't been mentioned here is are you using an old metal jerry can..?? I say this because rust is an issue with these and they the amount of crap an old metal jerry can can put into your fuel tank is amazing..! And to that Turkey Bill or whatever his name is, Nulon Injector Cleaner works and is good practice to use every 6 months or so..!
AnswerID: 156450

Follow Up By: Member - Bill S (NSW) - Wednesday, Feb 22, 2006 at 19:17

Wednesday, Feb 22, 2006 at 19:17
Well-WELL, Turkey bill does not use ANY additives and NEVER has a problem? wonder WHY

New Name TURKEY BILL
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FollowupID: 410601

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