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The transmission in my Yukon. Got it back from the shop in April, but worked literally every day since May 10th, so just now got to troubleshooting it. Symptoms are a slight flare into third, and a harsh 5th gear engagement, especially at fluid temps below 135 degrees. There is a cross leak...

I posted this originally on LS1TECH and got the answer I expected to hear, but it would be nice if anyone here with experience could provide any info. I just received a set of remanufactured L92 heads 823 casting for a refresh of my Yukon Denali. This is my first foray into the LS platform, but...

I have a friend that just received an odd analysis of the Mobil1 5w-30 oil from his last change. He is meticulous about maintaining his vehicles, uses the same oil each time, and has sampled the oil at each change. This time the elemental analysis cam back totally different than in the past. He...

Broke the plastic seal on the box tonight. It's new, though maybe older stock. I'll let the pictures tell the story. A22932 is the only code on the can. What do you all think? This is my preferred filter. This is good reason to cut the seal and inspect prior to purchase.

I have a question regarding the chemistry of the new Pennzoil Platinum Pure Plus oil. I recently changed the conventional oil out of my 205k mile 2005 Honda Pilot and refilled with the new formula Pennzoil Platinum. Prior to this change, there were no signs of any leaks coming from the engine...

This is from the 2005 Honda Pilot I picked up yesterday. There was about 150 Miles on this filter/oil. The dealer performed an oil change prior to putting the car on the lot for sale. 214,700 miles total on the vehicle. Just giving it a full once-over before making it my daily driver. Refilled...

Here is a Puro Classic l4610 that was run for around 4400 miles. This is a customer's 2002 Civic with 213k miles that lost a head gasket recently. The owner added nearly a quart of Prolong during the OCI. It uses a little oil, and that was all he had available, I guess. There was also about a...

Switched to Oil Analyzers for the last two samples. First sample was actually taken Jan. 2013. 4-5k Miles or approximately 1 year between OCI. Motorcraft 15w-40 Diesel Oil. Amsoil EABP110 bypass is installed. Thoughts?

This sample was taken from my friend's truck with 126k on the clock, and with 5800 miles on the oil in the sample. It towed ~14k for about 1000 miles of this run up a couple serious grades. It has the full Banks Big Hoss kit and he runs Lucas additive occasionally. What do you guys think?

My most recent UOA with Shell RTS. Iron seems high, but the mileage is still fairly low. What do you guys think?

I have a buddy who while servicing his transmission in his Superduty, was given the wrong fluid at the Ford dealer. Long story short, he ended up with about 5 quarts of Mercon SP in his 4R100 trans that calls for Merc 5. He is going to flush out as much as he can, and replace with fresh Merc 5...

Does anyone here know what the deal is with Honda having a proprietary fluid? I have run both Royal Purple and Redline PS fluid in more than one Honda vehicle with no issues (complete flush and fill). Does the Honda fluid have a special chemistry or viscosity?