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I had changed oil, but not filter, at 4676 miles. Looks like a weak additive pack in this Citgo Superguard. Also considering the fact that Citgo ripped me off with their bait-and-switch rebate scam, I think this will be both the first and the last time I ever use Citgo oils.

Notes: I'd estimate the duty cycle split (in terms of mileage) 1/3 highway, 2/3 city. The bulk of the "city" driving was from trips approx. 25-30 minutes in duration. First sample taken at 3425 miles / 151 hours Second sample taken at 4676 miles / 205 hours Oil was NOT changed at first sample...

After just going through a little debacle with having to replace the power steering pump and lines in the Impala SS after the pulley shaft bearing completely destroyed itself, I decided to spend a few extra dollars on Red Line power steering fluid, despite the fact that I have quite a surplus of...

From the PQIA... AP Lubes Supertech 10W-30 is a bit on the thin side, just the way a few regulars here like it. Also rich in iron, copper, and silicon "additives" http://www.pqiadata.org/APLubesSupertech10W30.html Mag 5 Star 10W-40 looks like it's going with the potassium "additive" strategy...

Is there a specific law or DOT regulation regarding the use of MUTCD arrow boards near the roadway for purposes other than to indicate a lane closure? There is a business several miles from where I live that -- at certain times of the year -- uses a Type C panel arrow board pointing to their...

After having had more than enough negative experiences with Firestone (and I'm not just talking about feeling a strong pull to the right as I'm driving home from my alignment, or waiting at the shop two hours just to find out they didn't even look at the camber & caster), I am looking for a...

I've been looking around and haven't gotten a conclusive answer on this. In my state (and every other state I think) it's illegal to drive a car on a public road without insurance coverage. So what do you do if you're planning on purchasing a used vehicle from a private party? How do you get it...

I don't drive anything with a diesel, but I've been wondering about this. Why exactly did the Detroit Diesel 2-strokes (71 series, 92 series, etc.) require mono-grade oil? With improvements in HDEO basestocks since these engines were developed, is it still a bad idea to run multi-weight oils in...

When running a UOA on ATF, would it be worth it to have the TAN checked if the original fluid's TAN is unknown?

Saw it on sale at Meijer back in October 2013 along with a manufacturer's coupon attached (that had expired almost a year earlier, but that Meijer overrode). Also had the rebate going at the time, so I thought I'd give it a try. Had some left over, so I decided to submit it for VOA at the same...

Could it be? I went to my local Sears hardware & appliance store this weekend, and walked out empty-handed when I found "MADE IN CHINA" on every single torque wrench they had. If I want a foreign-made torque wrench I'll go down to Harbor Freight and get one for $10 with the coupon. Today, I...

With reports of SOPUS introducing this so-called "Pennzoil Ultra Platinum" as their new premium synthetic, does anyone have a rough idea of a timeline of this? Wondering specifically if anyone knows when SN Pennzoil Ultra will start disappearing from shelves. Or is it all just speculation at...

Just had to replace a door latch assembly a couple months back due to a broken spring. As I have fairly large hands, it was kind of a pain to do, and I'd like to put off having to do it again as long as possible, and this is a vehicle I plan on keeping until it has fallen apart and I am unable...

Besides the obvious one, cost, are there any known practical disadvantages (hard on seals, lower octane number, etc.) of using Techron more often than necessary? Not necessarily in a stronger dose than the usual 1 oz : 1 gal, but using it, say, every 1000 or 2000 miles in an engine and fuel...

Over the past several years I've noticed that it has become a popular trend for auto insurance companies to feature wrecks in their ads. Bizarre, and certainly doesn't appeal to ME, but whatever. Please excuse my ignorance, but are these real, functioning cars that are being wrecked only for...

There seems to be quite a bit of disdain for Lucas products in general on here. What about their synthetic gear oil? Specifically, the 75W-90 and 75W-140. edit: Sorry, meant to post this in the ATF, Differential, Trans, Brakes, P/S forum....

Have several spots with chipped or scratched paint. I plan on doing touch-up paint on them and clear-coating over. But I'm thinking: the vehicle is almost 14 years old, and even though the finish and gloss looks great for its age except for those spots, I'm wondering if it's worth it to just...

2000 Ford Explorer with OHV V6, 184K miles Ran Seafoam in crankcase for a short time just before last oil change, and also through vacuum line 3 weeks ago. All of EGR system is new except actuation solenoid. PCV functional. Have been running M1 5W-30, roughly 3500 miles on it. Looks very clean...

Maybe this is a dumb question. I'm considering adding an inline transmission filter when I install my auxiliary transmission cooler. But I'm curious as to how the filter gets changed. I'd imagine it would have the same type of service interval as the pan filter (10K-50K miles) if not more...

I've read in various places that mixing different brands of oil should be avoided whenever possible, sometimes even recommendations of choosing one brand and sticking to it. But why exactly is this? Is it the difference in additive packages? If anything I'd think that could be beneficial, as...