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Check plugs/coils. My wife's CX9 had a similar stutter, most noticeable at highway speeds at lower rpm and under load with torque converter locked up. It was fairly violent when it did it. Initially I thought it was transmission related, but I decided to buy a bluetooth OBDII reader and Torque...

I wonder if it has to do with time rather than actual distance. The old 2 second rule, or whatever it is. At 50mph, it's X distance. At 70mph is X+Y distance to equal roughly same time space to vehicle in front. Just a thought.

I see what you're saying, but a counter. Cold oil in the pan needs to be sucked into the oil pump. If oil cannot be sucked into the pump, it cannot be put under pressure. The pistons/rings are not under any oil pressure and rely on the film strength. That's somewhat represented by the rotating...

I concur. I really like his videos/tests. He's done a handful of different oil comparison videos. Be careful, if you're like me, you'll end up going down the Project Farm video black hole. :) If you change your oil regularly and use synthetic or synthetic blend and quality filter, you really...

I don't have MRCC specifically (I don't currently have a Mazda), but my previous VW Golf R and current Ford Edge have radar cruise control. It took a little time to get used to the radar CC, but after using it and then jumping into my other vehicle that has regular, I really miss the radar. My...

I have the LE3's on my 14 Explorer with 20" wheels. About 8k miles on them. I got them right before last winter. They were a noticeable improvement in winter traction over the worn Michelin Premier LTX I had on it before. New for new they are about even. Both were lightyears ahead of the OE...

To be clear, I didn't say cannot, I said doesn't. What I mean is that the ECU (again, in my Mustang) doesn't learn/adjust anything by itself due to octane changes. I can make changes in the tune to optimize it for a specific octane, but then it won't be optimized for a different one. If I...

LOL, obviously I'm not the bestest (yeah, you read that right) at explaining. It makes sense in my head because I've been playing around with the tune lately. In short, the ECU in my stang doesn't optimize for different octane fuel. Has to be done manually via tuning software.

I only ran into a plugged line once in my wife 09 cx9. Is was for the rear A/C and you could hear water sloshing around. I did the compressed air option with an empty pump sprayer (like one used for lawn weed killer), pumped it up a bunch, put the nozzle at the end of the drain and blasted it...

Right on. Very minimal tech, inefficient power wise by today's standards and it was designed to run on 87 octane. If you think about it, the stock Foxbody had 225hp, which was respectable at the time. The new 5.0 is 460hp. That's over 2x the power with same displacement and yet yields as good...

I think we're saying similar things, just different way. At least on the turbo, the ECU is probably programmed for best performance with 93 octane. If someone uses lesser octane, the sensors and whatnot 'dial it back' to protect the engine. As for my Mustang, it does not have a knock sensor. I...

I think what theblooms was stating is that changing to higher octane doesn't absolutely mean more power unless the system (engine/tune) can take advantage of it. The turbo does take advantage of that extra octane....at least above 4k rpm according to the graphs. The naturally aspirated engine...

100% agree.

Yup. And to make it more confusing, DOT 5.1 is compatible with 3 and 4.

I'm also part of the 1 bucket and pile of microfiber towels crew. Seems to be the best at keeping dirt out of the soap bucket. The 2 bucket method is good, but I feel like you still risk scratches because you won't get all the dirt rinsed off the mitt before dipping back into the soap.

What's crazy is some people see the swirls as 'shiny' paint. After correcting my Golf R last year, I cringe every time I see swirled out (aka hammered) paint. When I was correcting the paint, I thought it looked less shiny, but after ceramic coating and getting it in the sun, it looked like...

Funny you mention that. I recently read an article that's what Tesla is doing with their long range models I believe. No change to vehicle physically, just 'unlock' the extra battery capacity that's already there. I think it was a $4000 charge to reprogram.

Damage is in the rear. If you look close, you can see the bent rear wheel. I didn't notice it at first.

Sheesh, how many miles do you drive a year to be able to save $3k a year? I barely spend 1/2 that even with the high gas prices....and that's with 2.7L Ecoboost Ford Edge.

Anyone have any links to these sites where they report improved MPG with mass air meter change? Also, if a company could safely increase MPG by ~15% (assuming 5mpg added to 34 mpg rated highway) without impacting power, wouldn't you think they'd implement it?