VR1 Racing SAE 10W-30 Motor Oil 1 QT

Great oil for my flat tappet engines. I run it in all my street rods and I love it. It is an affordable price for a quality oil.

Perfect oil for my 1984 corvette and 1980 el camino with sbc 355. Got all the good zinc for the flat tappet cams. Could lower the price a bit tho. Dont see why 20w50 is so much cheaper that 10w30

This was purchased for my 1979 Corvette, which requires Zinc. The package arrived well packaged, and all the bottles were secure without leakage. This product offers the protection that this car requires and is a good value, especially considering that I am not able to find it at any local stores.

Using this as a break in oil. Seems to be doing just fine.

Good stuff.

The gray bottle VR1 conventional oil is essentially the same as Valvoline's mainstream "premium conventional" oil, but with much more ZDDP. That seems to be the prevailing opinion on a forum dedicated just to motor oil, where many users send their oil in for a chemical analysis. That's a good thing - it means this oil is perfectly safe to use in a street car for a normal length oil change interval, and Valvoline has said as much on the packaging. ZDDP is a compound which contains phosphorus. It's effective at points of high temperature and pressure, particularly the cam lobes and lifters. However, if the oil is burned, phosphorus slowly degrades a catalytic converter. Federal regulators now require the car manufacturer to warrant their catalytic converters for a very long time. As far as I've been able to tell this isn't a real law, it's just the rising 4th branch of government making up new provisions to laws that were passed decades ago. The end result is that manufacturers have influenced modern API standards to require reductions in the amount of phosphorus in the oil. Modern engines don't require as much ZDDP anymore, but older flat tappet pushrod designs sometimes need more of it. The phosphorus limits imposed by API do not apply to 20w50 grades. Therefore, you'll find that the 20w50 version of this oil still has an API SN certification. This 10w30 version does not have the API cert, simply because it violates the phosphorus limit which is applicable on 10w30. It will still protect the engine as well as any SN rated oil would. The 10w30 version used to claim that it "meets or exceeds" the API SH requirements, but after my last purchase (in 2015) I noticed this claim has been changed to API SG. It's not an official certification, because you can't get API to certify standards that they consider obsolete, but the claim is an indication of where this oil sits in terms of it's ZDDP content. Xw30 grade API SN oil (the current standard) cannot exceed 800ppm phosphorus. The datasheet for VR1 10w30 says it contains 1300ppm phosphorus, zinc is 1400ppm. Zinc and phosphorus track together because they're part of the same compound, but phosphorus is actually the part that's regulated and prevents it getting an API certification. This amount of phosphorus was typical in the 80s and 90s, so it's not outrageous for an 80s car with a catalyst. I figure that worst case, it just means the cat won't last any longer than it did in the 90s, and I'm okay with that. The aftermarket replacement cats you'd probably have on an OBD-1 era car seem to break apart internally every 10 years anyway, regardless of oil. You can also mix this oil with the common white bottle "premium conventional" I mentioned at the top, which has 760ppm phosphorus. This will effectively dilute the ZDDP to something in between. This oil is not recommended for new cars, which don't need it and their cats are much more expensive than on older cars.

The perfect oil for my 48 year old, flat tappet cam car.

This oil works great in my 66 nova 327 ,still a flat tappet and this helps keep my car of the past alive in todays world.

Excellent

This engine oil made my 1984 Chevrolet Camaro Z28 with the 305 4 Barrel Carb in it and it became a totaly different car when I did the 1st oil / filter change with this engine oil. My car It was a little sluggish on the power when I first got it but then I did some extensive research on what the best type of engine oil I should run in it and i came across this engine oil made specifically for the older performance engines. My car starts up better than before and it has a lot more power, it also made it run better, and it was a bit better on gas too lol. All in all I definitely recommend this engine oil for them classic muscle cars. I will never put my usual choice of engine oil in it again. I’m sticking with this oil for now on for my Camaro.

Great for older cars due to the zinc additive. Little pricey compared to Lucas Hot Rod oil ( also excellent quality) but it holds up very well.

We order this every year for our oil changes.

As described! Couldn’t buy it from my local stores. Works great in flat tappet applications