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What’s the difference between the blue and green bottles of Liqui Moly? The description on the website doesn’t really help. Any experience with either one?
Thanks!
12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Lots of people using both, purple is the approved product for our cars meeting MB 229.5, the green is not actually approved, they state it is recommended for 229.5 but doesn't hav the actual approval, so has not gone through the process or cost to be approved. I emailed LM and they responded that they would recommend the purple as it is the approved oil currently for our engines.
This was their response when i emailed:
Our Molygen New Generation motor oils contain already an additional additive formulation for extra wear protection. The formulation is well balanced and works perfect, so we don´t recommend to add any further friction modifier into our Molygen New Generation oils in order to avoid bringing the formulation out of balance.
Further our MOLYGEN New Generation motor oils are mainly designed and developed for the latest generation of american and asian gasoline fired engines and have no european motor oil classification (ACEA) or OEM approval (the exception is the Molygen New Generation SAE 5W-40 which at least has a recommendation - no approval! - for various european engines). So our Molygen New Generation motor oils are perfectly suited for all vehicles where no OEM approval is existing and API or ILSAC performance specification is mandatory.
But for nearly all european engines there is a given OEM in-house motor oil specification which we highly recommend to use only OEM approved motor oils for. Our Leichtlauf High Tech SAE 5W-40 is Mercedes-Benz factory approved for your engine (MB 229.5), so we highly recommend you to use this oil - it´s the first choice for you.
If you want to further increase the engine´s performance and generate extra wear protection we recommend you to add our proven Cera Tec into the motor oil. Cera Tec is a high performance additive that works with a chemical agent (for extra wear protection) and a solid lubricant (ceramic) for friction reduction. It has proven itself worldwide and will protect your engine even under extreme operating conditions. The ideal dosage of Cera Tec is around 6-7% of the total motor oil volume.
So the combination of the OEM approved Leichtlauf High Tech SAE 5W-40 and the power of Cera Tec is currently the best possible package for your engine !
As I understand it, the Molygen (green bottles) would be the same as using a combination of High Tech (blue bottles) plus Liqui Moly MOS2 additive.
There are mixed feelings about whether the additives are necessary or not, but it is pretty common for people to use a regimen of the High Tech (because it is 229.5 approved) and Liqui Moly Cera Tec (every 4th-6th oil change) and MOS2 (for those oil changes wihtout Cera Tec).
Hi-Tech has been notoriously overpriced for a long long time. Castrol 0w40 is a better oil and much cheaper. Molygen isn’t approved for 229.5 because of excessive volatility loss, 1% off or something like that.
LM oils are generally nothing to write home about but they make good additives, especially Ceratec. Porsche guys run it a lot as they still can’t make an engine that doesn’t scratch itself to death 😂
Last edited by coupesedan; May 12, 2020 at 11:55 PM.
I switched to Molygen which is the green when fcpeuro was sold out of the other and I needed an oil change. Been good so far and no hiccups. I did use the Hi tech and ceratec plus MoS2 regime also before. I'd like to get a UOA with blackstone on next oil change maybe, see how it's fairing.
this is a liqui moly authorized seller and you can check my website www.enginesoils.com
kindly be informed that the difference is that the green bottle Combined with innovative additive technology and the special Molygen additive. Reliably prevents the formation of deposits, reduces frictional losses in the engine and provides optimum protection against wear.
for more clarification or other question you can contact us https://www.enginesoils.com/contact-us/
I've used the Green stuff the last 3 oil changes now. I do around every 3-4k miles. My engine loves it. So do my cam lobes as they look great after 73k miles.
Great but don't forget to use some essential additives like Engine Flush and catalytic system cleaner as well, you can check all information about it on https://www.enginesoils.com/shop
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