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Then why does the 2019+ MK7 GTI/GLI share the oil pump with ea888-3B (which is a variable displacement oil pump, also controlled by the ECU)? 06H115105FS Where the early MK7's GTI use 06H115105GC (just your typical positive displacement pump)

my old VW with the CCTA engine had the filter upside down also. Never spilled oil when I pre-filled it. The trick is pre-fill, wait until the media allows the oil to pass through into the empty side, then pour off the excess (use some of the excess to lube the gasket), and then install...

Don't worry, some tool company will reverse engineer the screw head and make a bit available in the aftermarket, and as more companies copy the design, the price of the bit will go down.

VW says differently. There is a reason why 508/509 oils are green. It has a chemical marker, that in the event of an engine warranty claim, VW will verify the marker in the oil sample to make the decision on claim approval, in case a BITOG member questioned a German's order to use 508/509, and...

VW supposedly changed the oil pump on the 3rd gen EA888 engines when they went from 504/507 to requiring 508/509 And The Dynamic Force engine uses a Variable-Discharge oil pump.

The oil pump was designed for the thinner oil.

Engine designed for higher thermal efficiency, low friction, and tighter tolerances is a design concession?

If only we knew if the tires were inflated properly. Not the first time Ford SUV had belt separation that was blamed on the tire manufacturer

Except the engine also provides propulsion also, as the engine be powering the wheels and charging the battery or powering the wheels with the aid of the electric motor. A beauty of the A25A-FXS is the thermal efficiency, of 41% at about 1900 rpms and somewhere in the low 2000 rpms, which is why...

TCCN did say on one of his videos, that in order for a dealership to get a warranty claim approved for an engine problem, they are required to drain a sample of oil and submit for UOA, to ensure the proper viscosity oil was used. Lake Speed Jr did a video on his channel talking about TGMO...

The Toyota Dynamic-Force engines were originally designed with the intention to use 0w16 oil, before 0w8 was introduced later to the M20A and A25A engines on certain models.

Except, Castrol doesn't always do that. Longlife III is for 504/507 & C30. No MB approval. There probably wasn't an equivalent MB spec Castrol thought it would be a good business case to include getting current manufacturer approval But for Longlife IV FE 0w20, it has the 508/509, C20, as...

Group III wasn't a thing back in the 70's. So, a little conventional oil was used to mix with the detergents. Not enough conventional to make a difference in the base stock performance GTL is more of a recent development in the Group III category

Once upon a time, Amsoil (was called Amzoil before( prided themselves by only offering Group IV base stock oils only (purchasing the PAO from Exxon-Mobil). Their 10w40 was the first synthetic oil to meet API certification in early 70's, hence they used the tagline "First in Synthetics" Over...

You can buy the MoS2 additive separately and give your oil that silvery dark gray color also from Liqui Moly

It could be either running battery + engine or engine and charging. It can switch between the 2 at any time. fortunately, the eCVT is quick to change ratios to get a higher speed if you push the pedal down hard enough.

Except Toyota is using a variable discharge oil pump for greater efficiency, controlled by the ECU.

the 0w8 requirement started in 2023.

High speeds or extreme loading conditions. There's no autobahn in NJ, PA, or NY. It's not towing 5000 lbs or more. So, it's very unlikely, a Corolla will see those conditions.

You can use 0w-16 if 0w-8 is not available, but 0w-8 must be used at the next oil change.