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Registered:
May 2005
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Unleaded petrol in a 4K-C Corolla???
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Tue, 31 May 2005 07:25
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Hi,
Just wondering if anyone can tell me if I can use ULP or PULP in my 1983 KE-70 Corolla wagon with a stock 4K-C engine? The model is listed here http://www.aip.com.au/health/lead_guide as not needing an additive to change to unleaded but it also notes "some listed Toyota vehicles may require engine adjustment to enable operation on regular unleaded petrol."
Then I found the engine listed on this site http://frodo.design.uws.edu.au/pubs3_02/N!K0LA!_L! U/mp/bowser26leaded.html saying it should use 98 RON unleaded and no additive or engine adjustment is necessary. That site appears to be a Shell document but since it's not on a Shell site it's trustworthiness is questionable.
I'm waiting for responses from both Toyota Australia and my local Toyota dealer on this topic but I'm not holding my breath since I doubt they care about such an old model.
Can anyone shed some light on this? Can I just chuck some premium unleaded straight in or do I need an additve or an engine adjustment or what? How about standard ULP?
Any info would be greatly appreciated.
thanks
matt
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Location:
Campbelltown
Registered:
November 2003
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Re: Unleaded petrol in a 4K-C Corolla???
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Tue, 31 May 2005 07:30
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its fine just throw some 98 ron in there 
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Location:
Tasmania, Evandale
Registered:
April 2005
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Re: Unleaded petrol in a 4K-C Corolla???
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Tue, 31 May 2005 07:33
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hey!! this might help im not sure but i have a 3TC engine and my mate has a 3K in his KE30 and both our engines are standard, and we but run any petrol we can find in cars, i've bin using unleded and premium unleaded for nearly 5 months, and just recently i have had to steal boat fuel just to go out for a drive and it worked wonders, it worked better than unleaded, and both our cars are meant to run on Super or LRP, but basicly u can do it but over say a long period of time it will eventualy do something but not any day soon!!
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Registered:
May 2005
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Re: Unleaded petrol in a 4K-C Corolla???
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Tue, 31 May 2005 08:02
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Standard ULP or 95-96 RON PULP both no good?
matt
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Registered:
May 2005
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Re: Unleaded petrol in a 4K-C Corolla???
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Tue, 31 May 2005 08:49
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I assume you mean you put unleaded mixed with 2 stroke oil in there? Since boat fuel is standard unleaded for 4 strokes and the above-mentioned for 2 strokes.
matt
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Location:
Sydney
Registered:
May 2004
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Re: Unleaded petrol in a 4K-C Corolla???
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Tue, 31 May 2005 09:16
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unleaded and high octane is fine buddy!
idles and goes better 
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Location:
Launceston
Registered:
March 2005
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Re: Unleaded petrol in a 4K-C Corolla???
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Sun, 05 June 2005 16:21
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just chuck in some flashlube and some premium, just to be safe.
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Location:
Sydney
Registered:
November 2003
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Re: Unleaded petrol in a 4K-C Corolla???
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Mon, 06 June 2005 03:43
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well i used 91 95 and 98 ron petrol in my corollas with a rebuilt carby and perfectly tuned.
91 RON
Car ran but was hard to start on cold mornings, ran rough, bogged down really bad and was generally POO
95 RON
Cost wise probably your best option car runs really well on this (vortex or any premium unleaded)
98 RON
if your rich then go for this stuff, only place your going to notice the differance between this stuff and 95 is right up the top end, ull find itll rev alot better up high with this.
i dont use any additives in my petrol and never have for either of my 4k corollas and havent had any problems
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Unleaded petrol in a 4K-C Corolla???
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Mon, 06 June 2005 03:51
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toyota alloy heads have hardened valve seats, so any ULP is fine. plain ULP may cause pinging tho
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: Unleaded petrol in a 4K-C Corolla???
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Mon, 06 June 2005 10:27
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and if it pings just retart the timing a lil
been runing standard ULP in my 4K eva since i got it
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