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True. I do remember Texaxo Havoline being stinky when I tried it years ago. I wonder if that's because Texas crude is literally crude as in it has lots of sulfur in it. Pennsylvania and Kentucky crude are naturally cleaner and don't have sulfur in them, which is why they have the best crude in...

Welcome to the forum! Short & Simple Answer: I recommend Quaker State Ultimate Protection Full Synthetic 0w20 because it's the thickest 0w20 that I know of. It's good oil that's available and affordable at Walmart. It's much thicker than Pennzoil Ultra Platinum 0w20. Detailed Answer: Some...

It's not my car to experiment on either. So 5w30 is a safe bet. Quaker State UP FS costs $20 for 5 quarts when on sale at Walmart, and it's often on sale. Regular price $23. I assumed Valvoline Restore & Protect costs a lot more. How does VRP cost? Yes, I'm helping her out of kindness, but...

You may be correct. I don't know. What I do know is I saw a 4 quarts overfilled car delevope new leaks that did not exist before. Even after oil level was returned to normal, slow leaks remained. Also, that same car had blue smoke coming out of tail pipe when overfilled. That would have been...

Without the OCIs we're only guessing how well the oil is holding up. It'd be nice to know. I suggest doing your first UOA when the oil starts to look black. You're not there yet. At this point it still looks clean, which is good enough for me. So you haven't failed. You're test is still good...

If overfilled a lot (likely more than 1 qt over)... The crankshaft whipping through the extra oil would reduce gas mileage and power. More concerning, it would also aerate the oil. Aerated oil doesn't pump well and doesn't lubricate well. The extra oil could also cause too high oil pressure that...

I agree, but she'd never pay for that. As it is, I'm paying the cost and providing the labor to help her. So VRP ain't gonna happen. What I am willing to do (since I'm paying for it) is do her next oil change early at 4K miles and next time use a good 5w30. Likely Quaker State Ultimate...

That's a good enough reason.

It's a more complicated, expensive system to build, which is one of the factors bloating new car prices. With dual injection you have twice as many injectors to maintain or replace, and I've read that direct injectors are more prone to clogging than port injectors. Also, wouldn't a dual...

Dual injection is a reasonable technical solution in some ways, but it bloats the cost of the vehicle and maintenance costs, IMO.

I think what he's really asking is if Mobil 1 is really better, and if so, how much would it matter? I don't know if M1 is better than Supertech. If so, not by much, and you'll never notice a difference, IMO.

True, but there's no easy, good fix for direct injection AFAIK. Maybe there is and I just don't know about it. I'm aware of several fixes, but they all involve hassle and/or expense and are bandaids that don't fully fix the issues. There's no fix for a timing belt, except to replace it on time...

That might have been the smell. The smell was almost overpowering in the enclosed 1 car garage where we changed oil. It was slightly difficult to breathe in the garage.

We put Quaker State High Mileage Full Syn 0w-20 in it. Next time I'm going to put Quaker State Ultimate Protection Full Syn 5w-30 in it. Unless someone thinks that's a bad idea. I think 5w-20 is the normal specified viscosity in owners manual. Is that correct? According to Oreilly website...

Are you serious or joking? It didn't smell like feet. I don't know what that cheese smells like.

I have no idea. Some type of quickie lube place used whatever oil for prior oil change. I wasn't smart enough to read the oil change sticker in the window, which was pulled off and thrown away. I wish I'd read the sticker.

My cousin recently changed the motor oil in my neighbor's 2011 Hyundai Elantra Limited, which (I think?) has a 1.8L engine. The oil was black, thin, and very stinky. I've never smelled used oil that stinky before in my life. I can't say for sure that it was fuel contamination because I didn't...

It was heading there for 10-15 years or longer, IMO. I think we fully arrived at least 5 years ago. I like my 97 Buick, but if I ever buy a newer car I'll look for an EV. I don't prefer EV over an old school gas engine with port injection, roller cam, and timing chain; but I do prefer EV over...

I know 3 shops in my local area that have excellent reputations because their front-line/varsity techs are excellent. However, their JV squad techs/assistants are unsupervised fools. So I can't trust those shops, unless they agree to let only their varsity tech(s) do the work. I have personally...

Holy cow! I've never seen a Jiffy Lube screw up that badly. I have however seen JL screw up in a variety of aggregious ways. You're saying a mechanic shop did that? I did once have my Jeep at a shop where the mechanic (who was not certified I'm sure) drained out my front diff oil. Forgot to...