Which Petrol

[markhansen1983]

So i've recently bought a 1983 corolla KE70 wagon....just wondering if I should be feeding it unleading, or the ethenol or premium unleaded blends.. I know some older cars can't take premium and just want to make sure i'm doing the best I can by it.

Cheers,

Mark

[Evan G]

bs! i run my 4k ONLY on 98!

 

you can't use anything less than 95 octane or youll ping detonate etc etc then goes BANG

[greenmac80]

BS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

what a total load of crap EVAN G i ran my car on 91 most rolla peeps i know run theirs on 91. nothing wrong with it.

[philthy30]

BS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

what a total load of crap EVAN G i ran my car on 91 most rolla peeps i know run theirs on 91. nothing wrong with it.

 

i agree k series will run on anything

[Hiro Protagonist]

In saying that though, the KEs were designed to run on leaded petrol (in Australia), which was roughly 95 octane, thus when leaded petrol was phased out 95 was basically stated as the norm for all pre-unleaded cars that had hardened valve seats (as the Kseries does, as it ran unleaded in Japan). Of course, this all goes out the window the instant you muck around with timing or the carby, after that point you can run it on normal 91 or 100 racing fuel, as long as it is tuned right.

[scottiriver]

heyy, i have an 82 ke70 rolla and it runs fine on unledded think its 91.

but tried the petrol + ethanol and it was running rough an i switched bak and ran fine

[Evan G]

BS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

what a total load of crap EVAN G i ran my car on 91 most rolla peeps i know run theirs on 91. nothing wrong with it.

i ran my 4k (130,000km) on 91 ONCE and it was pinging/ detonating its tits off, since then shell ultimate

 

stock timing and carbon cleaned from the cylinder head

[altezzaclub]

Depends where you are too- In Orange we can run on 91, but in Sydney it pinks on that.

 

I usually use alcohol 95 now, but we will see what happens in a couple of weeks after the head skim.

 

Anyone made the knock sensor microphone setup??

[seabiscuit]

If it runs fine on 91 (regular unleaded) and you don't like racing or driving fast, it'll be fine. Generally there is no difference

in a stock K for 95-98, but is better than 91.

 

Try each out and test them, but I'm sure 91 will run fine if it's tuned right.

[corolla_nut]

I would avoid ethanol because the ke70 has an accelerator pump plunger made out of leather or some sort of plastic or leather and the ethanol tends to find these things tasty! :jamie:

It's true that some cars do ping on the lower octane fuels, but if the timing is set to the correct factory specs this shouldn't happen.

Kylie/Rob

[coln72]

Ran premium in my club car (cammed, carbed 5k) once and you could actually hear when the premium got sucked through. The revs dropped and it nearly stalled on the start line. Usually ran 91 and it ran fine.

 

There was actually no difference on the stopwatch between the two fuels.