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Product Review: BG MOA Oil Additive

BG MOA (Motor Oil Additive) is an oil supplement made by BG Products that is added to fresh engine oil to help it resist breakdown, sludge, and thickening between changes. Community Auto first reviewed it in 2016. That original review is below, followed by an updated look from today's team.

Community Auto First published June 2016, updated October 2026 4 min read

The same product, reviewed twice: once in 2016, and again for today's engines.

The short version

BG MOA is a professional-grade additive poured into clean oil at an oil change.

BG says it fortifies conventional and synthetic oils against oxidation, sludge, varnish, and wear.

It tends to help most on high-mileage, turbocharged, and hard-working engines.

It does not replace oil changes on schedule or the oil grade your manufacturer specifies.

The original review (2016)

Original review, June 2016

It's fact: an oil additive is great for an engine. This review is of BG MOA, specifically, is because the product is… amazing! And is really not given enough credit. Considering the benefits to an engine and the cost of a can, the worth of this product is phenomenal. This seemingly simple yet incredible product truly does help extend engine life ten-fold. So much so that we, as a shop, swear by it and use it religiously. I personally add it to my oil every oil change. Eric (Owner of Community Auto) even uses it in his lawn mowers! I hope to shine some light on this little gem as it seems many customers aren't aware of its greatness and may be missing out on a simple way to make their vehicles last longer.

BG MOA (Motor Oil Additive) is, as the name suggests, added to oil and makes the oil more effective. Oil is the blood of an engine, and its condition and contents are extremely important for engine function and performance; just as the shape and functioning of red blood cells is incredibly important for transporting oxygen and thus the performance of your body. This additive, which is added to clean oil after an oil change, ensures reliability of critical engine components, prevents excessive oil consumption, and ultimately extends engine life. Adding it to your oil can be a substitute for using synthetic oil, essentially making conventional oil more effective and longer lasting—it's that amazing! BG MOA is great to add to oil in any engine, however we especially recommend using it on older or high mileage vehicles, every oil change.

After a combined history of more than 100 years in the automotive repair industry, the Community Auto team know the best products out there and consider ourselves responsible for extending our expertise to our customers. Unlike many quick-lube stations, we have many BG products in stock, including MOA, that we'll install in your vehicle at the time of your service, saving you a trip to the parts store and the hassle of popping your hood. We're sure to keep up-to-date on the best products, so you don't have to dedicate thought to it.

A modern view: BG MOA in 2026

From today's team, October 2026

Ten years later, we still like BG MOA, and engines have changed a lot since that first review. Many cars now run thin synthetic oils, small turbocharged engines, and direct fuel injection, all of which put more heat and stress on oil.

What BG MOA does

BG MOA is a concentrated additive package. According to BG Products, it fortifies engine oil to resist oxidation and thickening, helps prevent sludge and varnish, reduces wear, and helps keep piston rings from sticking. The company says it can be used with any brand of oil, conventional or synthetic.

Which engines benefit most

High-mileage engines

Worn rings and seals make oil consumption and deposits more likely.

Turbocharged engines

The turbo's bearings run in very hot oil.

Severe-service driving

Short trips, towing, stop-and-go traffic, and mountain roads.

Longer oil change intervals

Where the oil has to hold up longer.

Conventional vs. synthetic today

Our 2016 review said BG MOA could stand in for synthetic oil. Today, many manufacturers require a specific synthetic oil that meets their own standard, and your engine should get that oil regardless. We now treat MOA as an addition to the right oil, not a replacement for it.

What it won't do

An additive cannot fix mechanical wear, stop a leak, or make up for skipped oil changes. If an engine is already burning oil or knocking, it needs a diagnosis first. Some manufacturers advise against aftermarket additives during the warranty period, so check your warranty terms on a newer car.

The BG Protection Plan

BG Products offers the Lifetime BG Protection Plan through participating shops, which can cover certain lubricated parts when qualifying BG products are used at the recommended intervals. Coverage and eligibility depend on the vehicle. Ask us whether yours qualifies. [Confirm with Chris before publishing.]

Want BG MOA added at your next oil change?

Book an oil change

BG MOA and oil change service in Fort Collins, CO

Community Auto keeps BG products in stock and can add MOA during your oil change, with no trip to the parts store. We'll tell you honestly whether your engine is a good candidate or whether the right oil on schedule is all it needs.

For straightforward auto repair in Fort Collins, call or book online.

Frequently asked questions

What is BG MOA?

BG MOA is a motor oil additive from BG Products. It is added to fresh oil to help it resist oxidation, sludge, and thickening between changes.

Can you use BG MOA with synthetic oil?

Yes. BG says MOA is compatible with conventional and synthetic oils of any brand.

How often should BG MOA be added?

The usual practice is one can at each oil change, added to clean oil.

Is the BG oil additive worth it?

It is most worthwhile for high-mileage, turbocharged, or hard-working engines. On a new engine with the correct oil changed on time, the benefit is smaller.