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So for 30 weight oil, API SP is less tough than VW 504/Porsche C30 For 20 weight oil, API SP is less tough than VW 508/Porsche C20 ? How about Acura HT-06 for 30 weight and RBSO-2AE for 20 weight ? Any particular characteristic need to be paid attention before just use Porsche standard ?

That plug is for small motorbike, so it is not common is US, but is common in developing countries in certain parts of Asia, and there is no point to buy the normal one instead the iridium one since the cost different is minimum but the performance gain is significant. But if the dealer sell...

yeah I dont think they are stupid enough risking their authorized dealership with principal, but many big store that is not directly authorized perhaps will do so

https://www.castrol.com/en_us/united-states/home/motor-oil-and-fluids/engine-oils/motor-engine-oil-brands/castrol-edge-brand/castrol-edge-euro-car.html

Looking at the Castrol website, they have 0w20 in Volvo (RBSO-2AE), BMW (Longlife 17FE+), and Porsche/VW (VW 508/509, Porsche C20). Other brand typically only made 1 common C5 spec that cover these 3 variants, but Castrol has impressive -66 Celcius pour point for VW/Porsche and typical 204...

If you want more potent, just fill up with the techron and idle your car for 1 hour. Turn off the engine and let it heat-soaked for an hour or so and drive like you steal.

Yes, and it is very effective if you idle for long time and then do high rpm spirited driving (y)

From 3 model you mention, only Alenza is designed for heavy vehicle/SUV, so longevity is better than other 2 for your Envoy even though the traction may not be the best. If you can find Pilot Sport 4 SUV, then it may be the best to replace Latitude Sport 3. I like Latitude Sport 3, the best in...

I think the Fuel Injector Pro contain some combustion enhancer that reduce the ping but not much on combustion chamber cleaning. However if using it helps, I would recommend to use 3 step fuel system kit or full dose Redline SI-1 in the tank and spray CRC GDI Intake Cleaner to have better result...

Not sure what is the change of contents after so many years, so I believe this MMO is just working as light lube and fuel injector cleaner rather than other things that can be done better with modern additive.

I noticed similar pattern even though the other way around... in my area Shell use extra friction modifier(FM) except for the highest grade of VPower, this FM I believe create longer startup compared to Exxon/Mobil or Shell VPower. I have observed this on 2 different cars, 1 with PFI and with...

My curiosity keep digging more info on this additive, seems the patent is registered here: https://patents.google.com/patent/US7491249B2/en There is a write up on their test: https://www.tandfonline.com/doi/full/10.1080/10962247.2020.1781709 Hope someone with chemical/tribology background...

The website claims it help clean the combustion chamber but I believe that is more on PEA effect, the product is said consist of organic Nitro compounds such as Nitromethane, Nitroethane, 1-NP combined with proprietary ester. The price may not make sense somewhere else, but here the different...

Is this SN or SP version of Mobil 1 EP 0w20 ?

Stumble a popular local distributed fuel additive. It seems like snake oil but it feels like a combustion enhancer added on Caltex Techron Plus concentrate, and make the engine perform better like being fed with higher octane. Just wonder if someone can give other sample of this nitro-alkanes...

I also use the above, Lubegard Biotech, Redline SI-1 I felt Molygen effect only start to be pronounced after 5k km, engine more peppy, tiny bit less noisy, average oil temp 2 centigrade less on light driving.

If you want to use MTL I would suggest to mix it with MT90 to prevent problem and you do not waste your MTL

I am lucky living in small expensive country with optical fiber to service provider, my Internet latency 2ms, download 903 Mbps, upload 950 Mbps

Then you can encrypt your USB drive first before copying the file.

When you backup, did you copy to removeable media or encrypted disk inside the corp laptop ? Did the backup use the same file format ? Sometimes DLP policy may have different policy based on the destination and the file format, e.g. actual .ppt compared to encrypted zip.