Recent content by ESP9935

I agree with your point that under specific, extreme outlier scenarios; such as a dedicated hot-shot duty cycle with consistent highway mileage, extended drain intervals can be acceptable with the right lubrication. My intent wasn't to argue that it's impossible, but rather to highlight that...

Nice try shifting the burden of proof, but that’s not how logic works. You were the one who claimed a 20k-mile drain interval on this platform was safe because "others have documented" it. Your "documentation" was pointing to a completely unrelated Scion inline-4 and your own 8k interval. That...

A sticking LH primary timing chain tensioner causing timing chain slap due to varnish build up on the tensioner piston is a very well documented issue with UR V8s on lackadaisical oil change intervals. Cam phaser feed restrictions are an issue on pretty much every engine with VCT. The UR...

Not unless you want to replace your LH primary timing chain tensioner at relatively low mileages. No DOHC V8 with 4 cam phasers is an ideal long drain candidate, IMO.

I'd wager the copper spike it likely is from a change to a Group V ester-heavy oil and is likely a byproduct of chemical chelation. Just a guess. I'd say the PPM/1000 miles is pretty meaningless except as a spot check for the average joe who runs the same oil for an extended period, making...

The previous 3UR-FE block:

I'm personally not impressed with concept of the all aluminum bedplate of the V35A. I think the assumptions that it's inherently robust are unfounded. Note the commonality here 11,000 HP capable BAE Top fuel billet block: One of the few OEM cast production blocks that have proven to hold...

The V35A doesn't have particularly tight clearances for an aluminum block: Notably larger than the 3UR-FE:

*cousin

They probably don't have 8L/10L issues either, right? The issue is pervasive whether your anecdotes reflect it or not.

I'd to see numbers on this. Got any spreadsheets showing what failed when?

LOL, GM is lobbying for the exact same thing. https://www.yahoo.com/news/politics/articles/trump-says-ford-gm-asked-112700395.html https://www.caranddriver.com/news/a71562651/trump-ford-gm-right-to-repair-battle/

I'm no fan of modern EcoBoost/10R80 Ford era quality either, but complaining about lousy reliability while sporting a Stellantis product in your avatar is pretty bold.

The third rebranding of a garbage system. Displacement on Demand became Active Fuel Management then finally Dynamic Fuel Management.

6th gen will fall short