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From a 2006 BMW 3.0i N52 engine, Z4 3.0i, 55k miles, I believe original plugs. Looks a little carbon coated but otherwise healthy? Putting new ones in today. Reference: http://car.exchange.ph/2016/02/20/spark-plug-analysis-tells-you-how-healthy-your-engine-is/

https://www.amazon.com/gp/product/B00TS9ZYWI/ref=oh_aui_detailpage_o01_s03?ie=UTF8&psc=1 Darn it I just ordered this but I’m guessing this is the older formula?

GF and I are going to take a 2006 Z4 3.0i with 55k miles for some track days every other month. We're planning to change the ATF fluid in the car, a ZF 6HP19 before we go (among some other upgrades like brakes and tires). I was wondering if it might be a good idea to add a bottle of Lubeguard...

Originally Posted By: MotoTribologist Originally Posted By: FlyPenFly If it does that, are the effects still in place after you change your oil? Yeah, I would expect it to stay in place for some time. It probably leeches out of the elastomer over time, but I wouldn't expect it to happen too...

If it does that, are the effects still in place after you change your oil?

This stuff is crazy good at fixing leaks in old engines. It also seems to reduce oil consumption itself a high mileage old car with worn ring seals. It also seems to help fix some rubber bushing issues according to some youtube videos if you spray it on there. Does it just melt rubber seals...

BMW S54 found in the E46 M3. 8000k rpm redline on an inline 6, iron block. Quite an amazing noise it makes too. They had a huge problem with thrown rod bearings supposedly due to a supplier issue. At the time of the recall they also mandated using Castrol TWS 10w60 if you wanted to maintain...

If they make this in 5w40 or 0w40, I would consider switching from Edge for my DI cars.

Actually Magnatec seems to be their newest formulation. The recent VOA makes it extremely compelling. I love the additive package they used and low Ca high Mg.

I guess it depends what clear coat you use but even after years, a quality clear coat won't allow the lens to yellow. Now putting it on perfectly without it pancaking is an experienced earned skill though.

Just use automotive clear coat after a polish. Lasts years in my experience. If you're doing your polish yearly, I would just use Meg ultimate compound, works well when it just needs a buff.

I'm surprised someone who posts here and tracks responses as well as ask for recommendations... ends up using [censored] for their purpose. But I guess that's the kind of decision matrix that leads to driving 135mph on public roads. Save it for the track junior.

Why a mix of oils?

Just changed the oil on my 2007 grand vitara v6 auto with 136k miles with Castrol Edge Extended 5w30 5L and hearing a strangle slapping noise at idle: https://photos.app.goo.gl/ay5w37im9v2PFNEv8 Can’t really hear it in the cabin unless I have the AC off, anything I should be wary of? It...

There are a lot of people here with newer cars that want to feed them the best food. Especially with engine technology making giant moves.

Intake valve deposits don't only come from the intake. Probably not even most of it.

Originally Posted By: RichR Originally Posted By: FlyPenFly $700 in Socal for a drain, fill, change filter on the 7 speed Mercedes automatic at the dealer. Has to be done every 70k miles or 7 years. Hopefully the trans wan't the only place they put lubrication. They stock KY by the barrel...

Any widely available 0w40 that's more Mg?

Right around that mileage is when Audi engines start showing problems with valve intake deposits.

$700 in Socal for a drain, fill, change filter on the 7 speed Mercedes automatic at the dealer. Has to be done every 70k miles or 7 years.