Discussion
Okay question time for the s2 knowledgable.
I'm about to do an oil change prior to doing a weekend long distance glasgow to cambridgeshire run and a track day.
Is it worth the extra to fill with mobil 1 as suggested in the good book or will any other 0w/40 oil do just as well.
My rear tyres will need replaced on the return from this jaunt. Having checked out blackcircles.com and mytyres.co.uk the variation in potenza's is confusing. I've taken the codes from the tyre wall and understand the usual 225/45 zr17 bit but what is the rest (bz k0001 99v) all about and how important is it.
Suppliment to that any other suggestions for tyres. This is a daily used car in the wet lands we refer to as Scotland!
Alot here but any suggestions would be great. Cheers
I'm about to do an oil change prior to doing a weekend long distance glasgow to cambridgeshire run and a track day.
Is it worth the extra to fill with mobil 1 as suggested in the good book or will any other 0w/40 oil do just as well.
My rear tyres will need replaced on the return from this jaunt. Having checked out blackcircles.com and mytyres.co.uk the variation in potenza's is confusing. I've taken the codes from the tyre wall and understand the usual 225/45 zr17 bit but what is the rest (bz k0001 99v) all about and how important is it.
Suppliment to that any other suggestions for tyres. This is a daily used car in the wet lands we refer to as Scotland!
Alot here but any suggestions would be great. Cheers
Theres an offical Lotus PDF document which has a rant about the tyre spec;
www.grouplotus.com/car/car_aftsales_techtpc.php?section=9&page=12&page_id=38
"Elise ‘Mk.2’
Lotus engineers have worked with the tyre manufacturer Bridgestone, to produce a version of the
‘Potenza’ tyre specifically for the ‘Mk.2’ Elise, to optimise performance on both road and track. This tyre is identified by the construction code element of the DOT code moulded on one of the tyre sidewalls, and it
is most important that ONLY this version is fitted if the correct handling characteristics are to be maintained.
The rear tyre is NOT the same as fitted to Opel Speedster/Vauxhall VX220. Lotus front tyre code; CFE.
Lotus rear tyre code; DCK.
The ‘Mk.2’ Elise uses different hubs to ‘Mk.1’, with roadwheels having a larger diameter and PCD, such
that there is no interchangeability between models. Rimstock wheels with both 6 and 8 spoke designs
have been used, both of which are retained with four conical wheelbolts. Some 8 spoke wheels are
finished in ‘high power silver’ which can be very difficult to shade match.
The Sport 135 and Lotus Sport 111 versions use Yokohama A048 tyres mounted on 16 spoke O.Z.
roadwheels in conjunction with sports suspension. The wider front tyre (195/50) is fitted on a wider front
wheel rim. Lotus approves of this tyre fitment only as part of the complete Sport 135R/111 package. The
tyres should not be fitted on standard specification wheels, or with standard suspension."
... I have been tryng to work what my local discount distributors can offer to match the current fit as they arent keen on matching DOT codes;
Bridgestone Potenza RE040 @ 175/55 R16 80V DOT EJA8 CFE 2502
Rear: Bridgestone Potenza RE040 @ 225/45 R17 90V DOT EJH8 DCK 2402
Cheers, HB
www.grouplotus.com/car/car_aftsales_techtpc.php?section=9&page=12&page_id=38
"Elise ‘Mk.2’
Lotus engineers have worked with the tyre manufacturer Bridgestone, to produce a version of the
‘Potenza’ tyre specifically for the ‘Mk.2’ Elise, to optimise performance on both road and track. This tyre is identified by the construction code element of the DOT code moulded on one of the tyre sidewalls, and it
is most important that ONLY this version is fitted if the correct handling characteristics are to be maintained.
The rear tyre is NOT the same as fitted to Opel Speedster/Vauxhall VX220. Lotus front tyre code; CFE.
Lotus rear tyre code; DCK.
The ‘Mk.2’ Elise uses different hubs to ‘Mk.1’, with roadwheels having a larger diameter and PCD, such
that there is no interchangeability between models. Rimstock wheels with both 6 and 8 spoke designs
have been used, both of which are retained with four conical wheelbolts. Some 8 spoke wheels are
finished in ‘high power silver’ which can be very difficult to shade match.
The Sport 135 and Lotus Sport 111 versions use Yokohama A048 tyres mounted on 16 spoke O.Z.
roadwheels in conjunction with sports suspension. The wider front tyre (195/50) is fitted on a wider front
wheel rim. Lotus approves of this tyre fitment only as part of the complete Sport 135R/111 package. The
tyres should not be fitted on standard specification wheels, or with standard suspension."
... I have been tryng to work what my local discount distributors can offer to match the current fit as they arent keen on matching DOT codes;
Bridgestone Potenza RE040 @ 175/55 R16 80V DOT EJA8 CFE 2502
Rear: Bridgestone Potenza RE040 @ 225/45 R17 90V DOT EJH8 DCK 2402
Cheers, HB
Re the Oil...
Without an oil cooler the elise can get its oil temp to 120-140
degree's on track. This is obviously based on driving style and ambiant temp.
2 basic problems with this. an oil with a 40w rating is going to be as thin as water at this temp, this is real bad.
2nd if the oil is mineral, semi synth or even a cheap fully synth the oil is going to break down and this makes the already thin oil almost useless.
Ideally get a cooler, then you can run a good fully synth like Mobil 1 Motor Sport, Silkoline, Motul
you can also pick a lower W value rated oil as it shouldnt get over 120 degrees even if you very enthusiastic. I would recommend 5-40w Silkoline Pro. Around £35 for 5 ltrs.
At the moment without a cooler I would run something like mobile 1 motor sport which is a bit thick from cold but with a 15-50w rating will still be in reasonably good condition at the high temps you are going to see. Again this is around £35.
Also.... especially without a cooler change the oil frequently, say every 3 track days.
Hope that helps,
Richard
Without an oil cooler the elise can get its oil temp to 120-140
degree's on track. This is obviously based on driving style and ambiant temp. 2 basic problems with this. an oil with a 40w rating is going to be as thin as water at this temp, this is real bad.
2nd if the oil is mineral, semi synth or even a cheap fully synth the oil is going to break down and this makes the already thin oil almost useless.
Ideally get a cooler, then you can run a good fully synth like Mobil 1 Motor Sport, Silkoline, Motul
you can also pick a lower W value rated oil as it shouldnt get over 120 degrees even if you very enthusiastic. I would recommend 5-40w Silkoline Pro. Around £35 for 5 ltrs.
At the moment without a cooler I would run something like mobile 1 motor sport which is a bit thick from cold but with a 15-50w rating will still be in reasonably good condition at the high temps you are going to see. Again this is around £35.
Also.... especially without a cooler change the oil frequently, say every 3 track days.
Hope that helps,
Richard
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