I am trying to decide between LiquiMoly Top Tec 6600 0W-20 and Valvoline European Vehicle Full Synthetic 0W-20 for my Jaguar F-Type R. I need an oil that meets STJLR.03.5006 and both of these do. I've used the Liqui Moly the past 3 oil changes and my Blackstone Analysis hasn't shown anything concerning, but I'm interested to know if one of these oils is generally better than the other. Does anyone have an analysis from a lab on virgin samples of either of these oils? The Valvoline seems to be a higher quality oil, but I'd like to hear some opinions. My car has 35K miles, is mostly street driven and I change oil every 2500-3000 miles since I've owned it. It does have a larger crank pulley and is tuned so I try and keep extra on top of oil changes. Thanks for any input.
STJLR.03.5006 - Liqui Moly Top Tec 6600 vs Valvoline Euro Vehicle
- Thread starter tm1238
- Start date
20 definitely feels light for the application, but I'm afraid to got up to a 30 or 40. Potential tight clearances along with screwing with the VVT and any other oil pressure controlled components is a real possibility.
None of that is a real possibility.
I've heard that it can mess with VVT system, can you point me somewhere that discusses this further?
For one thing no engine is that sensitive to viscosity. “Cearances” aren’t too tight either.
Beyond that, viscosity is highly dependent on temperature. Any oil grade is massively thicker at temperatures below normal operating temperature as compared to the relatively small differences between grades. If any of this hyper-sensitivity were a reality then engines would fail on a regular basis anywhere when the ambient is less than 200F. They don’t. It’s all Internet lore and imagination.
Of some engine could be messed with by the small difference in viscosity between a 20-grade and a 30-grade then that would be a ridiculously poorly designed engine.
One question you have to ask is why would they do this? For what benefit?
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Can you prove that the JLR specification is not something to care about? I've been unable to find UOA of folks running alternatives in these engines.1. No you don't.
2. But you still want 0W-20 with manuf. spec
Do you have a warranty with smaller SC-pulley?
Only reason for low viscosity is too achieve emissions target, Euro 5 during development and Euro 6 from 2015.
A feat in and of itself with a 5L supercharged engine. But that requires a strict manual regarding oil choice.
Any quality oil (mid-saps for exhaust treatment) with good properties will protect that engine.
http://jagrepair.com/images/Training Guides/NP10 Complete Manual 4-15-09.pdf
I'm not interested in warranty. Only interested in protection. Deviation from the JLR additive package is something I'd like data to support.
Look up MOFT.
I don't see anything unique in that engine that requires thin oil.
See second post.
https://www.jaginfo.org/threads/5-0-v8-engine-development.108114/
I don't see anything unique in that engine that requires thin oil.
See second post.
https://www.jaginfo.org/threads/5-0-v8-engine-development.108114/
I'm not really concerned with the impact of viscosity. What I am concerned with is the addictive package of the JLR spec.
Clearances have not changed since the 1940's. I cant speak for how the vvt may act though
Close enough too MB-Approval 229.71 and the others.
Its a fuel efficiency spec. with exhaust treatment capability.
https://www.addinol-shop.de/addinol-motorol-0w20-premium-020-c6.html#Spezifikationen
https://www.mobil.com/en-lu/passenger-vehicle-lube/pds/eu-xx-mobil-super-3000-formula-ov-0w-20-
Are you recommending that?
Hahahaha, No.
But look at those oils and their approvals.
There is minimal difference between oils that have STJLR.03.5006 approval.
I would call Bowler and ask what they use, if you want actual real world data.
Ain't no way they use 0W20 in these V8's.
https://www.bowlermotors.com/
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Which wouldn't show whether it is appropriate or not. @Kalle.J is correct.
Then use a mid to low-SAPS oil with a minimum HT/HS of 3.5. If you are in the US there are several choices available at Walmart for a good price.
Here is an analysis for the 6600. I also ran the Valvoline euro, but it was definitely louder and my gut just didn't like the oil. I didn't run a UOA on it.
I'm running 0w40 Castrol euro at the moment. Prob switch to 0w40 M1 for the next change as it is cheaper and has similar specs.
I'm running 0w40 Castrol euro at the moment. Prob switch to 0w40 M1 for the next change as it is cheaper and has similar specs.