PierreLP

I think Mobil have commited commercial suicide since re-branding their Motorsport 15/50. The extended life seems to be aimed at  older high mileage engines (even if it has the same lubricating properties as the previous branding).
I too will be looking at Castrol Edge 10/60 in the future.
Bear in mind though that a Lotus recommended oil may not necessarily be the best for longevity or engine protection. A lot of manufacturers recommendations are based on commercail arrangements with oil compannines, and the 900 serioes engine has been out of production for a good while now.

The Castrol Edge Sport is the only one that will sustain the oil pressure at higher temperature...you wont be sorry .
Furthermore there is no way this is out of production.
not Edge ,but Edge Sport 10w60

This change caused an issue for one of the big single seater formulas. Three engine builders have all reported that the Mobil 10w60 causes drag.

I tried Bardahl in my race car early last year and the difference in performance was so marked that I decided to import the products into the UK. I now use it in all my Lotus cars and it's no coincidence that Andy Dolan started winning Elise Trophy races as soon as he switched to Bardahl oil.  It is the best quality oil available because "it uses the best additive packages available including Lubrizol" according to an independent oil lab ( who tested the oils) and a guy at one of the certification organisations.

If you are buying Valvoline make sure it is manufactured in the USA and not Holland.

At the end of the day most synthetic oils will do an ok job. I know that I use the best available and that's why I give a 100% money back guarantee and will put the oil up against any other in the Shell 4 ball test or Timken wear/friction test....

This is not an advert I'm just giving the best advice. I work with chemical engineers, well known engine builders and recently two car manufacturers. I'm not just a retailer selling product, I'm working with people to find the best solution.



Not correct.......there are plenty of people iwho have tried Castrol Edge Sport and the Bardahl XTR C60 10w60. They now use the Bardahl.

By the way I don't want to get into a petty forum argument

I finally met Günter yesterday at the Lotus Club Deutschland summerfest. As you may know he has quite an intimate knowledge of Esprit and is a on his way to his MSc in Engineering so knows what he's talking about.

• In a nutshell we (1996 on Esprit) don't need to worry about parts corrosion as there are no susceptible parts in the fuel system.
  
• The key issue is that due to the extra consumption the cost benefits are lost.
  
• Only running issues will be the ECU and the injector settings may not be so compatible resulting in less smooth running (Günter explained in German which is not my mother tongue so I may have missed something in translation). Anyway, Ramjet, from this conversation the conclusion was the car certainly wouldn't run better. :/

Not too sure about the "holding water" tendency of E10 so best not to leave it over winter with a full tank.

Also the handbook information was confirmed by Colin Brown at Lotus Cars.

I have seen a story in this weeks (31.08) issue of MCN where the panic is starting about E10 introduction in the UK so I'd expect the same kind of panic back home there as here in Germany where, for a short time they started hiding E10 as no one was buying it.

All sorts of problems can be caused depending at what percentage Ethonal is mixed in...and the good news is the suppliers dont need to tell us!

Any ways if any one is interested there is some info here as well as a survey which may help give the Gov some insight?

http://fbhvc.co.uk/

Buddsy