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Have a old '67 F250 HighBoy that has a 390 out of a 1968 vehicle. Far as I know it's stock, and runs on a 2 barrell carburetor so it's not making gobs of power. I've been running 15W-40 Rotella in it, but as I understand it, the zinc levels have dropped substantially in the new formula so should...

First UOA, impressed with the results and how fast it took to get back! May try 0W-40 to combat the higher iron wear perhaps? Not sure if that will help or if I'm overthinking it.

The 03 Buick in my sig is the first S/C'd car I've owned and am on the fence with what oil to run. Is 10W-30 absolutely required to keep the engine happy or can I just run 5W-30 year round? Planning to stick with PYB or QS dino which I know is a quality oil. But, because it gets so stinking cold...

Recently bought a 1989 Econoline RV with a 460 in it. Only 72k miles on it, should I use 15W-40 in it for higher zinc as this is a flat tappet engine I assume? Figure it would appreciate the thicker oil due to the heavy weight of the vehicle and possible towing a car/or ATV trailer behind it...

I'm about due for a new set of tires on my Tacoma. I've gotten roughly 60k on the Cooper STT Maxx tires it has now, but they're about shot and starting to weather between the treads so I want to replace them before winter. Heard good things about Michelin but don't care for BFG A/T's as they...

So roughly 3000 miles ago, I took my Buick to the WM autocare center for an oil change. BITOG's biggest sin, I know, but I don't have jack stands and can't weasel under the car to do it myself so until then I gotta have someone else do it. I change the oil myself on all my 4x4's since I can...

Since buying a Buick for my daily driving duties, the Tacoma is going to see a lot less miles on it annually. Probably between 5k and 10k or less as it will only be used on weekends for running around town or whenever the weather gets bad and the car can't get around effectively. Last several...

Recently purchased a 2003 Park Avenue Ultra with the supercharged 3800 V6 and see that it has slightly dirty orange coolant in it I assume to be DexCool? I really don't know much about coolant types but would it be okay to swap it all out with the green universal 50/50 stuff? I do the work...

Yep, went full on senior citizen and bought an old man car, even though I'm a millennial! But I've always loved big, cushy, comfortable land yachts. Has 126k miles, one owner and dealership maintenance all its life. What the consensus on these cars? Had strong reviews everywhere I looked, but...

Does anyone know why various models of Fram filters have different baseplates? The holes are bigger than one and not the other, so you'd think the bigger holes would flow a bit better and it would make sense to use them on everything. Or am I overthinking it? The PH3614 for my Tacoma has the...

I know oil color doesn't necessarily tell us much, but wondering if anyone knows why it varies with different brands? I used to use PP pretty exclusively, and it would take around 3k miles before the oil darkened. Now for the past 3 changes I've been using Mobil 1 and it darkens within a few...

Ugh, doesn't seem like Purolator is on top of quality control at all still! Had to replace a FL400s on my Tacoma earlier due to it leaking, despite being tightened down properly and baseplate cleaned off good initially, filter had roughly 1000 miles on it. I didn't bother inspecting the filter...

We all know how touted M1 is all over the oil bottles, commercials, used by over half of NASCAR teams, official motor oil of NASCAR etc.. But how true is this? And what grade would they use in those high performance, high revving V8's? Or is it just a huge ad campaign to sell more oil by XOM...

My Ford Contour's transmission died so I'm in the market for another fuel sipper, but one that's actually reliable. I've narrowed it down to a mid 00's Corolla. Manual transmission is highly desired, as the past two economy cars I've had both died from automatic trans failures, plus it's way...

Just wondering if there's any harm in using P/S fluid in place of a system that calls for ATF and vice versa? I went to have my Tacoma P/S system flushed at a Mobil Lube Express but stopped them because they were going to use P/S fluid over the Dex III ATF it calls for, was I wrong to do this?

Had a lot of people tell me that block heaters are no longer required if you use a good synthetic oil. But are they right or wrong? My Tacoma doesn't even have one, but I use M1 AFE 0W-30 in it, and it can get as low as -20 here in winter and even colder at times. It's parked outside as I don't...

And is it any good? Someone mentioned to me that it might be by ConocoPhillips but didn't have a for sure answer. I used this in the transmission of my Toyota because it was the only full synthetic I could find that met the Type-IV spec. It seems like multi vehicle ATF's are a mixed bag around...

I saw a pour test from Pennzoil awhile back depicting the difference in pour quality between used and new oil, and the used oil wasn't pouring as fast into the beaker. Made me curious about how much oil thickens over time or if it even does it at all? This could be an advertising ploy to get...

Neither this or their syn blend multi vehicle ATF list any specs for Toyotas. My truck takes Type IV fluid I believe and want to make sure this is okay to use for the next service. It's a multi vehicle formula but I don't see why it has so few specs listed. Open to suggestions to other brands to...

Anyone had to have this done to a CD4E before? What's the approximate cost? The transmission is getting funky in my Contour and I think it probably needs a rebuild or replacement, it shifts okay for the most part but sometimes slips between gears and or shifts roughly. There's a bunch of codes...