My performance shop reccommended an oil change (7K miles since the last one) before my next DE.

He uses only Motul, which he insists is better and more expensive than Mobil One.

My engine hood has a sticker saying to use only Mobil One.

Is the Mobil One sticker just marketing? Or, is the Motul really a bad idea?

 

Never heard of it. That doesn't neccesarly mean anything but here is my take. The engineers at car company spend a lot of money and time to qualify an oil that they will acually recommend. Even if Mobil is giving them a special deal on all oil they put in their car they still have to make sure that it is a good product and will not cause any harm or warranty issues. So I go with what they recommend not some here say from someone who can not do the extensive testing neccessary. To really test oils properly they run engines for 100's of hours under varying conditions then tear them down at intervals and take measurements and do oil anyalisis. It is long and expensive. Ask him for his test data?

 

What about AMSOIL? Anyone know if this is OK?

 

Why would you? Unless you are racing and it is going to be the difference between losing and putting food on the plate, why would you? Is there THAT much difference? I haven't heard of many engine failures caused by bad batches of Mobil 1. There isn't a TON of cost savings is there? I really don't know, but I really don't know if I want to? :-o

 

I agree with Steve and KY_soldier...who's done that much research? And why would you do it in anyway? Go with Mobil it's safe and frankly it won't make any difference...just my $.02

 

5w30 or 10w30?
I think mobil 1 has a 0w30 out right?

 

Mobil pays Porsche for that sticker, just like the one on a Corvette. It use to be Shell.

There are 7 Motul oils on the list of approved oils. Some say Motul is a superior oil.

 

It probably would not make a difference. Guys who race claims brands like Motul, Redline, ect.. has certain advantages over the other systhetic like Castol and Mobil 1. Hey even Castrol says its better than other oils. Its all marketing. IMO all systhetic oils like Mobil, Amsoil, Valvoline, Castrol, Motul, Redline, Penzoil will be fine for you car as long as it falls in the recomended viscosity that is used in your operating tempature. BTW I use Motul Oils in my two stroke skis, and dirt bikes and had good results.

 

8100 Ester E-Tech 0W-40

Gasoline and Diesel engine oil
100% Synthetic – Ester Based

TYPE OF USE
Specifically designed for powerful and recent cars, diesel direct injection or gasoline engines and catalytic converters.

PERFORMANCE
STANDARDS - ACEA A3 / B3 / B4
APPROVALS API SJ / CF
VW 502 00 / 505 00 / 503.01 - Mercedes Benz 229.3 - Porsche
This 100% synthetic engine oil has been formulated, developed and tested according to the most recent technical requirements. It largely exceeds the stringent specified engine performance limits required by the European and US car manufacturers.
* The performance ACEA B4 request an outstanding detergent/dispersent power and a better viscosity increase resistance due to soot needed for a perfect lubrication of last generation Direct Injection Diesel engines (exception for VW unit injector engines asking for MOTUL 6100 5W-40 VW 505 01)
* The VW 503.01 standard requires at the same time low volatility, high efficiency lubricant, friction reduction, high resistance at high temperature met in modern engines to allow extended drain intervals (computer on board).
* The standard MB 229.3 is more stringent than 229.1 in terms of ageing resistance (extended drain interval : computer on board), detergent / dispersent power (see ACEA B4) and requests fuel economy performance : 1.2% fuel economy improvement versus reference 15W-40.

RECOMMENDATION
Drain interval : refer to manufacturers’ recommendations and tune to your own use.
MOTUL 8100 E-tech 0W-40 can be mixed with synthetic or mineral oils.

 

Motul is good oil. As long as it is synthetic 0w40, 5w40, or 5w50 with the ACEA A3 rating it is approved by Porsche.

 

Motul 8100 Ester E-Tech 0W-40 is on the Porsche approved oil list.