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Anyone know if a 1989 Pug 1.6 GTI runs on leaded or un-leaded. Read conflicting reports saying some do and some don't. Which is it ????
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It's meant to be leaded but they will run on unleaded if you retard the ignition slightly.
Having said that theres almost certainly sufficient lead memory in the head to be ok for a fair while on unleaded.
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I though the GTIs had the all aluminium XU engines sames as the 405. I ran my 1989 405 SRi from 45k to 110k on unleaded with no problems. Brother ran a 1.6XSi 306 for a similar mileage also on unleaded. Check with Peugeot or one of the PUG sistes to make sure.
Main things to watch on these engines was cambelt (I did mine every 24k) and coolant changes every 2 years and I did 6000 mlile oil changes. Valve stem oil seals went on both engines at around 60k.
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Yes the GTi's are the XU engine and they have hardened valve seats as standard but they should be run on either leaded or super unleaded. Normal 95 ron will not help the kangarooing that most of them suffer from.
The 306 1.6XS (they didn't do a 1.6 XSi) used the TU engine which is a different kettle of fish entirely.
www.pughosting.co.uk/forum/showthread.php?t=43494&...d
www.pughosting.co.uk/forum/showthread.php?t=49552&...d
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Sorry, mistype there, meant 309 XSi which was an XU. You are absolutley right about the 306.
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I run my 1990 1.6 gti on unleaded without the timing being altered. I have owned the car from new and I had the timing checked at a Peugeot garage when it was running on leaded petrol.
When the supply of LRP ceased I decided to use 95 unleaded, but expected to have to retard the ignition as recommended. I intended to slightly retard the ignition by rotating the distributor until the engine stopped pinking under load. It is difficult to check the timing without specialist equipment as the timing marks are on the flywheel and the observation hole is obscured by the fuel injection.
I was surprised and very pleased that the engine ran well with unleaded, did not pink and did not kangaroo any worse than it had done on leaded and LRP. Some owners thought that their cars ran a lot worse on unleaded which was why I was reluctant to retard the ignition.
I would say try unleaded first and see if you have a problem with pinking. As it has already been mentioned the valve seats can cope with unleaded so it is only a matter of the ignition timing.
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The original handbook for my 1989G 205 says Super unleaded, 97 RON minimum for all models in UK and France (lower in Sweden). But I looked at a 205 GTI Drivers website the other day which suggested that the 1.9 needed higher-octane fuel than the 1.6. Either way, decent unleaded should be OK, IMHO.
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Certain XU engine codes from that era can be run on unleaded happily with the ignition timing altered slightly.
Theres also some XU engine codes that cant use unleaded under any circumstances without new valve seats being fitted to the cylinder head.
You need to find your engine code & find the facts either on the internet or ask at your friendly Peugeot dealer.
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ask at your friendly Peugeot dealer.
wouldn't bother with that - most parts and service counters are now staffed by 17 year old kids who are younger than a lot of the 205's out there and they know naff all about them.
You need to find a decent dealer with an old skool parts guy who knows what he's talking about.
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Thats my local Peugeot dealer then, Im on first name terms with nearly everybody there seeing as im on Peugeot number 4.
I also get a nice discount on parts & have an account too, Not bad for a private customer.
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