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I'm not worried. I'm perplexed. 🤔

My dad's mid 80s Oldmobile and mom's 79 Mazda didn't care if they were overfilled up to 1 quart. My parents both sometimes did that. I never noticed any problems from it. There was one time that Jiffy Lube overfilled my dad's Oldsmobile 4 quarts too much, which caused obvious problems. My 96 &...

I thought everyone always pulled out the dipstick, wiped it, then reinserted it fully, then pulled it and read it. That's how I've always done it.

My friend with the Jeep used the cheapest version of 10w30 Supertech back when it was dirt cheap. Before price increases. If there is something cheaper available now, it's probably what he'd use now in his current car. For him cost was/is the only thing he'd consider. For me, I want the best...

My dad and mom sometimes overfilled their cars 1 quart. No problems were ever observed. They drove moderately. If someone drives hard then it might matter. Jiffy Lube once overfilled my mid 80s Oldmobile I used to own with 4 extra quarts. That was an obvious problem, even driving moderately...

I didn't say it's good. I don't know if it's good, but I'm sure at least adequate for most American cars. Likely most Japanese cars too.

What is HPL? I'm vaguely aware that it's a brand of oil.

I don't want a 5w40, but you got me thinking. I just compared the KV100 cSt of Quaker State UPFS 5w-30 to QS Euro L 5w-30. QSUPFS 11.7 cST QSEL 13 cSt Most other 5w-30 USA syn oils are from 10 to 10.5 cSt. Wow those QS # are good/high cSt @ 100C for 5w30 synthetic oils, especially for the...

That's useful info!

Mobil One doesn't make PSF. Did M1 make it in the past? I don't think so. Just curious.

My friends 96 Jeep Cherokee went 410K miles using the cheapest version of 10w30 Supertech and cheapest Supertech oil & air filters. So apparently Supertech is an adequate (or better than adequate) oil.

Maybe so. Sometimes we don't know why management & bean counters make the decisions they do. They're not always right. I work in both IT & marketing departments as low/mid management in a real estate development and apt owning and managing company. I'm in regular contact with, and working with...

I meant Wallyworld online sold by Walmart (not 3rd party resellers). If it costs over $30 for 5 quarts, then I'm out. I generally look for $26, $25, or lower. I occasionally buy at NAPA or Oreilly online when on sale. I like bargains that perform well. Bargain hunting is half the fun. As you...

I appreciated his answer. His questions are fine and relevant. I appreciate everyone who has posted.

Maybe for some. I think many just associate Rotella with excellence. The name Gas Truck was quite descriptive of its purpose, IMO. Though Gas Truck & SUV would have been even better.

I'd like to see you use an extended OCI filter that's rated for 15K, 20K, or 25K. Then only change the filter at its recommended OCI. How often are you doing UOAs? Are you going to post them?

POR-15 is the most effective rust inhibiter paint I've ever used or heard of, and it can be sprayed or brushed onto rusty surfaces (after proper prep). Proper prep is brushing off loose rust/dirt, spraying area with POR-15 prep acid degreaser, let sit specified time, then rinse off with a hose...

Now how about telling me... How I can like my own posts? 🤣

How do people use other emojis instead of the basic thumbs up?

It's quite a lot thinner, but I believe Lubeguard is good. However, it's not what I'm looking for. Thanks for your helpful intent.