February 4, 2024 - Bullseye Motor Oil is another brand that has failed to meet very basic standards. The Petroleum Quality Institute of America found that this brand doesn’t meet API standards for viscosity, additives, and other necessary specifications.

April 1, 2025 - Many vehicles produced today require full synthetic motor oil to be added when the used stuff is changed out. In an effort to help both do-it-yourselfers and car owners presented with a bevy of options at the shop, we've ranked ten of the most popular brands of synthetic oil.

December 2, 2023 - I was surprised to see that Pennzoil was $2.33 more expensive than Quaker State for a quart of synthetic. This has got me wondering if I shouldn’t have bought the QS.

Answer (1 of 6): Yes there are few brands which should avoid w.r.t particular manufacturer and recommendations Oil brands have some essential characteristics which can be identified by there grades and specifications Grades include viscosity and standard define by USA and Japanese regulatory re...

I've had friends that are into racing and have looked into brands that some may not. 1. Overpriced, but very good - royal purple, Lucas oil, and amsoil. My personal favorite there is the most cost effective - amsoil.

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August 23, 2021 - Click to expand... worst i've ever used was Mobil 1...not because it's bad but because I've used other better oils since then. ... Rotella T6. It's what was in the sump of my Subaru when it spun a rod bearing so it gets the blame. ... Valvoline Full Synthetic motorcycle oil.

August 27, 2017 - Everyone is looking for the best oil, but lets look at the other end of the spectrum. Like std Fram oil filters are arguably the worst oil filter design, there has to be an oil out there that everyone considers the one to avoid. Any thoughts? You misspelled "Purolator"!

May 17, 2003 - Originally posted by Mystic: ...if there was some brand or some brands of motor oil that are truly bad and could ruin a person's engine, it would be nice to know... Click to expand... Simple - avoid ANY brand that is not at least API SJ/GF-2, or preferably, SL/GF-3 certified, unless even more ...

February 2, 2025 - Quaker State is well-known in the automotive world, but when it comes to the lower-end products in its lineup, like the “Advanced Durability” or certain “Economy” versions, it falls short. Experts say these oils can break down quickly, especially in high-mileage vehicles or those that experience heavy driving conditions. Quaker State’s budget options just don’t perform as well as oils from other well-established brands. Why avoid: You might get through a few thousand miles, but you could face higher wear and tear on the engine down the line.

Go to Wal-Mart, auto parts stores, Dollar stores etc and buy their store brand 10W30 and rest assured it will work just fine. It’s a world of difference better than any motor oil that was used in the Model T era. Don’t spend your money on exotic brands that have this and that in it and ...

Toyota Aqua Oil Change Check Engine Condition Contact Number | 03125982934 #toyota #toyotaaqua #oilchange #oil #fresh ... Valvoline restore and protect. Have you used it? #carmaintenance #diymechanic #CarRepair #engineoil ... 5 engine oil brands I recommend.

March 20, 2024 - As always the higher end filters are usually better, but all brands have their not-so-great offerings. Wix used to be my go-to, but they recently were bought by Mann-Hummel and have been made much cheaper. The last three I used leaked at the base plate seam and were made in China. Click to expand... That's the problem, you do all your research and pick what you think is the best then they change them. Motorcraft used to use the base mounted bypass which IMHO was a superior design, then they switched to the cheap end mounted flapper like the others use.

March 16, 2025 - It even says right on the bottle to use it with caution, so it’s definitely one you should avoid. Not one Xpress Lube Pro motor oil is approved by the API. That, and the fact that it’s not recommended by any professional, should raise red flags. Xpress Lube Pro oil is of inferior quality and doesn’t contain adequate levels of necessary additives. When tested by the Petroleum Quality Institute of America (PQIA), it was also found to contain abrasive materials that could damage an engine. Cruz-In is another motor oil brand that doesn’t meet any standards and will probably not lubricate your engine efficiently.

April 7, 2025 - Purity – Choose virgin oils and avoid recycled (usually written as RC on the bottle) ... Additives is what makes engine oils different. Lubricants manufacturers know how you can reduce cost by using lower quality additives and some of them do that. Here is a Guide to Lubricant Additives ... Oils must meet API, ACEA specifications. Meeting automaker-specific standards (OEMs) can mean be even better. The right motor oil plays a critical role in keeping an engine running smoothly for years.

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August 13, 2025 - Top-tier oils enable 15,000-25,000 mile drain intervals with proper filtration while maintaining protective properties, whereas inferior brands require changes every 3,000-5,000 miles to prevent excessive wear. This 5x service frequency difference creates annual cost impacts exceeding $2,500 per vehicle through increased oil purchases, labor expenses, and operational disruptions. Advanced fleet tracking systems can monitor these brand performance patterns and provide actionable insights for procurement optimization. ... The true cost of selecting inferior motor oil brands extends far beyond initial purchase price differences, encompassing accelerated wear, increased fuel consumption, and catastrophic failure risks that devastate operational budgets.