TOM1111 Member 631 Member For: 17y 11m 15d Gender: Male Location: newcastle Posted 20/02/08 04:10 AM Share Posted 20/02/08 04:10 AM im pretty sure is doesnt say a minimum of 95it says for increased performence use 95to answer your question a stock car shouldnt ping on regular unleaded so there maybe a problembut like others have said dont be a tight arse and put atleast 95 in Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636323 Share on other sites More sharing options...
XR06T Silver Donating Members 4,146 Member For: 20y 20d Gender: Male Posted 20/02/08 04:32 AM Share Posted 20/02/08 04:32 AM definatly should NOT ping on 91 octane petrol. when mine was on the dyno I used 95 ron petrol and the afr's dipped into the 10's at the top end.what rpm is it pinging at? a grindy turbo wont sound all that different to ping. Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636332 Share on other sites More sharing options...
tab Sucker Moderating Team 32,303 Member For: 21y 2m 18d Gender: Male Location: Brisbane Posted 20/02/08 05:57 AM Share Posted 20/02/08 05:57 AM Have had mine running on 91 when stuck in the middle of nowhere a few times. Theoretically the engine is supposed to "detune" itself but I wouldn't make a habit of it.Certainly wasn't any audible pinging. Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636357 Share on other sites More sharing options...
XRPete Member 673 Member For: 17y 10m 3d Gender: Male Location: Here Posted 20/02/08 07:41 AM Share Posted 20/02/08 07:41 AM It even says in the owners manual that it must run on minimum of 95 RON. So would would assume that Ford designed it to run on a MINIMUM of 95 RON.....mine says this also. Recommended - Premium unleaded Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636414 Share on other sites More sharing options...
Pube Member 159 Member For: 18y 2m Gender: Male Location: Sydney, NSW Posted 20/02/08 08:42 AM Author Share Posted 20/02/08 08:42 AM Some more intelligent replies and some not so. When I open up my fuel flap it says 'Ethanol (E10) Fuel suitable' and the owners manual says something like 'premium fuel recommended for maximum performance'. It was a simple question , is it usual for an XR6T to ping using regular unleaded. I was also asking if the engine de-tunes itself to handle the lower octane. Its got nothing to do with being a tight ass! Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636454 Share on other sites More sharing options...
RHR BOOST Moderating Team 5,698 Member For: 21y 10m 8d Gender: Male Location: Southern Highlands NSW Posted 20/02/08 08:52 AM Share Posted 20/02/08 08:52 AM Mate as I said ive been in a number of t's with the ZF 6 speed that ping on WOT and I reckon that due to your exhaust and cai this could all relate Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636459 Share on other sites More sharing options...
hanra Into the laaaake Member 1,532 Member For: 18y 29d Gender: Male Location: Nrth Qld Posted 20/02/08 09:56 AM Share Posted 20/02/08 09:56 AM im pretty sure is doesnt say a minimum of 95it says for increased performence use 95Yeah I was wrong, you were right. Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636513 Share on other sites More sharing options...
CJ_AK cj_ak Donating Members 5,077 Member For: 18y 12d Gender: Male Location: Ropes Crossing Posted 20/02/08 10:07 AM Share Posted 20/02/08 10:07 AM The 91 fuel that your using could be crap as well, try a different station.I was a stuck a couple of time and reluctantly filled up with 91. It was smooth as butter. Felt like crap though.I was in the same situation a month ago. This time I had a flash tune on the car and it was again driving perfect.Seriously dude, its not supposed to ping. Get 95!!!! Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-636523 Share on other sites More sharing options...
mic Donating Members 1,725 Member For: 17y 5m 25d Gender: Male Posted 22/02/08 11:56 AM Share Posted 22/02/08 11:56 AM Rev is right, your bigger cat back alters boost pressure (higher) and with low octane fuel its pre-igniting.With those mods you must use 98 oct.It will also be more efficient. Link to comment https://www.fordxr6turbo.com/forum/topic/42772-engine-ping-using-normal-unleaded/page/2/#findComment-637375 Share on other sites More sharing options...
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