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For 2023 Land Rover Velar engine oil, Castrol's online product finder is saying: SORRY! No product recommendations. Unfortunately we cannot determine a suitable product for your vehicle. This may be because we do not have a product that matches your vehicle’s specifications, or more information...

My 2001 2500HD made it to 152k miles when I changed the pads. Also changed the rotors, but since almost all miles were done inland in Florida (zero rust), that was totally unnecessary - probably could have gotten twice that or more out of those rotors - 27 lb each in the front, lots of steel.

Motul Specific 5122 0W-20 has JAGUAR STJLR.51.5122 OEM approval. Amazon shows 67.59 for 5L or 63.36 (each) if you get the case of 4. JEImportPerformance online has it for 60.09. With those kind of high prices the 21k mile OCI is starting to look a lot more reasonable (except when the car gets...

You viscosity chart is for API SF oil... SF was in effect as the latest and greatest thing between 1980 and 1988. At that time, technological development of VII (viscosity index improver) was still in its infancy - a typical conventional oil 5W30 would have too much shear in the 3000 mile...

First - forget about using any oil that is rated Energy/ Resource Conserving. Only use wet-clutch rated motorcycle oil JASO MA/ MA1/ MA2. Then, know what kind of oil temperatures you are getting during usage, and match it to ambient temperature and race length. This can help decide when it's...

It won't blow up under normal circumstances, but it's likely so worn that a few trips up to redline just might do it. But that would likely happen no matter which oil got used. But if it's burning 2.5 quarts per 1000 miles there is zero way that vehicle can pass an annual California state...

The SDS may or may not be telling the truth about the range of content percentages. No guarantees there. The reason, if the percentage of PAO decreased in the latest iteration of M1 EP's may be because of the Dec. 23rd 2021 explosion and fire at the Baytown, TX refinery, where a substantial...

Why choose the Euro Formula 5W30 over the XL 10W40? (Hope this is not too overwhelming)... The Euro Formula has better base stocks than the XL, meaning it uses a higher proportion of Group 4 PAO & Group 5 ester in the mix than the XL's mostly Group 3/ 3+ blend. This causes Euro Formula (and...

GenesisGuy70, if you want to stay with your Amsoil plan, think about the "European Car Formula" 5W30 100% syn which I believe has VW 504.00, 507.00 approvals, and is recommended for 229.51, LL04, C30, Dexos2, and MS-11106, API SN . Stout oil with Noack 7.1%, HTHS 3.6. Keeping the HTHS in the...

It may seem like Exxon Mobil have cherry-picked the tests that were shown in this video because maybe they had a more favorable result than the competition, but rest assured they have done every possible relevant test on their oil and their competitors' oils. For the last 8 years they have had...

The one from my BITOG moniker - 2012 DL650, Suzuki Wee Strom. A 644cc V-twin with only 67 hp and 41 lb·ft torque, it's not at the ZX14 or Hyabusa level for meting out driveline punishment, so it should get even more mileage before shift quality drops off, all other thing being equal...

My experience with oil fading in shift quality has been similar to the OP's, including on street bikes. Have tried Rotella 15W40 - 1500 to 2k miles, Mobil 1 15W50 - 1800 - 2200 miles, and Mobil 1 4T 10W40 2000 - 2500 miles before I did not like the shift quality. I finally spent the extra to try...

Convention base oil oxidises & nitrates faster than synthetic with the same amount of combustion blowby. Meaning by 3 - 5k mi it likely contains the precursors to varnish and sludge that detergents and dispersants may not be able to prevent from depositing. That's why the earlier oil change...

Reuseable TTY bolts - I've learned something new.

I'd be most worried about getting salt and chemicals on the body and frame of that car. But stepping back I'm getting the feeling this is supposed to be one of those humble brag posts where everyone has to guess what car you've put into storage while your poor 911 gets beater duty on marginally...

As a pro mechanic giving advice, I am quite surprised you are implying you are advocating re-using any TTY bolt with your question. Almost all other sources on this topic that I've seen state that bolt yielding is a one-time affair and re-use often results in long-term fracture of the fastener...

Yeah, I think you're correct - mains should have been .0025 - .0030 in. and rods should have been .0013 - .0018 in.

I noticed no one is making recommendations for the transmission fluid or the differential. Anyone, anyone, Bueller?

Nitro M3, Why are you getting so worked up? We do not need to ask the original builder what the spec was, because it came in the folder with the car's documentation. My buddy has also seen the engine oil recommendation, and being a total newb to the performance car/ engine world, he is more...

NitroM3, what more detailed engine information would be needed? Cam lift, duration @ .050? Rocker ratio? Crank end play clearance? Camshaft bearing clearance? Weight of the engine? How about mass of the flywheel or harmonic balancer? Number of angles ground into the valve seats? Whether the...