Recent content by RevvCats

I said “bit of a clown” he makes a lot of videos which are quite good but that whole tear down video to find the stuck piston rings is pure trust me bro. If that was a car his shop had been servicing great he should be able to state exactly what the past oil change milage/time intervals were and...

Car care nut is a bit of a clown, he has a video (maybe it’s the one you linked) where he literally says oil analysis won’t catch varnish/sludge formation while offering ZERO proof that 1) the broken engine he disassembled had used oil that would pass a lab analysis with flying colors 2) what...

My local race shop carries it but that’s a fringe case. Their 5w-50 has a high HTHS viscosity right up there with Redline, I’m hoping to try them out during a track weekend sometime soon.

I’ve seen Motorcraft semi-synth at Walmart but not the full synth, actually I don’t think I’ve ever seen Motorcraft full synth on a store shelf. If you like red there’s also Schaeffers but I’ve only seen that at race shops.

While my engine (2019 GT with a gen 3 coyote) was under warranty I ran Mobil 1 (twice), Valvoline, and Castrol 5W-20 through my 2019 GT over long intervals 8-10k miles. Aside from some differences in the additives, Valvoline had a significantly higher amount of moly and Castrol has titanium for...

Yeah if you look through the Ford Performance recs they universally say 5w-50 with changes every 4 hours going back to the S197 mustangs. What’s also interesting if you look at the specs for Motorcraft 5w-50 its a thick 50. KV100 21 cSt. Ford doesn't have a HTHS listed but from KV100/40 values...

Yeah this is what I was trying to get at. Even if for whatever reason you like his test setup and think it’s going to give you a meaningful measurement he doesn’t do the most basic of steps in experimental science, make multiple measurements to quantify the uncertainty. Can his setup actually...

Even if you believe that his wear test method provides any valuable information, those results only differed by a whopping 5% I know it looks larger, more like a 2x difference between the best and worst, because of how close he zoomed in on the y-axis. A tried and true tactic of deceptive data...

He did the first few oil changes early to flush out break in wear. Going into this change they put 7500 miles on the 0W-16 and concluded the oil held up fine. Now that they’ve got a 0W-8 in he said they’re going to sample it at 5k, 7.5k, 10k to see how well it holds up over that long of an...

I think they’re also assuming theres an expert driver at the wheel. My test here was about as soft as you could possibly get. Novice track driver, cool day, track with a technical section that really slows things down before you get back in the throttle. I’m sure as those things change the oil...

The recommendations vary. For my PP2 and the Mach 1 the official Ford rec is 5w-30 every 4 hours. GT350 its 5w-50 with no special interval stated for track use, so I guess it’s just the general severe use 3-5k mile interval. GT500 it’s 5w-50 every 4 hours. Move over to Ford Performance and...

The recommended oci for track use is 4 hours, just a smidge lower than the 10k mile intervals I was doing while daily driving. Now I’m a real track novice and wasn’t pushing my car anywhere close to its limit, but I did put a fair amount of sustained heat into the oil and it was reassuring to...

Thanks, and good point. Looks like the mods already fixed that, thanks mods.

Longtime lurker, first time poster. Thought you folks might be interested in some of the oil testing I’ve been doing with my 2019 Mustang GT. I’ve done a series of long drain interval, ~10k miles, tests using various 5W-20 oils but that info is going to take some time to put together so I...