


Oil Extreme 16oz Bottle Concentrate Additive
Oil Extreme 16oz Bottle Concentrate Additive
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In passenger cars and light trucks you should use 1 ounce per quart of your favorite motor oil.
For Race engines use 2 ounces per quart of your favorite Racing Oil. Of course we hope it is Oil Extreme "Better Than Synthetic" Motor Oil. If you are using our Motor Oil, you only need to add 1 ounce per quart for race engines. Calcium Petroleum Sulfonate Technology Guarantees up to 7 Horsepower Gain and up to 10% extra mileage in passenger cars and race cars. GREAT for HONDA Fit, Jazz, & City SHUDDER Problems.
Customers have reported it cures all shudder problems in CVT gearboxes in as little as 5 minutes.
Use Oil extreme Four engine longevity. Nothing else like it, get it.
Let customers speak for us
from 269 reviews
Set of 3 hood vents installed on my 03 Z06, great product, fits great and pulls out the heat 🥵

Fast shipping great customer service

Brian at FI Performance always goes above and beyond to take care of customers. I am a repeat customer and will continue to use them for all my needs. Thanks again Brian, amazing as always!

Exactly what I needed for my lowered C5. Full range of adjustment and quality made product.

Got a great product. In a very timely manner very happy

Great experience, order got messed up and Brian made sure to get it fixed and kept me up to date by texting me.

Exactly what I needed and had it next day

Customer service was great. Order shipped quick. Great value and the change to the car was better than expected. Wife no longer braces herself for the expansion joints and other Ohio road issues.

Brian was AWESOME to deal with, I changed my mind a few times on what I wanted to do with my c6z.. You can go down an endless rabbit hole when you get into these cars “while I’m in there “He was right there with updating pricing and I couldn’t ask for more.. Parts are parts and they will fail but it’s the service that sets the bar for a big purchase.. I haven’t driven the setup yet as it’s still being built but I’m sure he a phone call away to get it sorted..

Great customer service as always. Was on my doorstep within 48 hrs.

High quality parts with installation pics to come

Great support team helped me get the parts needed and got my order within the week.

Balancer was exactly what I needed. Everything as described and fast shipping. Thanks guys

Team went above and beyond to locate the part needed to get my can back on the road asap.

I finally got to install the intake which literally took 10 minutes. The power and launch difference was insane! You can hear the turbos spooling a lot better as well. I’m amazed by the difference just from the intake