Quote:
Originally Posted by dustylax
What did lotus engineer that relates to the engine/oil ? Do they buy and assemble toyota engines and change specs ?
i just dont believe everything i hear or read. unless lotus is assembling the 2zz to their own standards i wouldnt believe anything about what recommended oil to use unless it came from the mouth's of a toyota engineer.
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<sarcasm mode on>
Yep, I would totally ignore Lotus engineers.
They did a lousy job designing the Corvette ZR-1 engine for GM, not to mention their own V8 engine.
The fact that their engineering division is contracted by auto manufacturers (and race teams) all over the world to design and test engine internals and certify emission systems for various markets doesn't mean a thing.
Lotus only built a new, very large, state of the art test facility incorporating at about 30 engine test cells so that they would look good. Their work in alternate fuels, etc. is meaningless.
<sarcasm mode off>
Besides their very large amount of expertise in the field of engineering, they did add the oil coolers to the Toyota engines used in the Elise/Exige to help control the engine oil temperatures. I suspect that they really do know something about engines and oiling systems. At least enough for me to follow what they have "suggested" for the proper specification of oil to use - at least while the engine is under warranty.
Seriously, the Lotus engineers are some of the best in the world. They are not prone to make uninformed recommendations. There recommendations to only use 5w40 synthetic for street use in the Elise/Exige have some reasoning behind them (I suspect it's more than just that's what oil is commonly found in Europe). The recommendation may not be appropriate for other engines or the engine used in other vehicles. They have also recommended another oil specification for track use (I never remember that one as it doesn't apply to me).