Dyno testing fuels - Big difference between Shell 91 and Chevron 94

[68style]

.... almost everyone here thought Shell 91 was fantastic based on past experiments locally, so your views are actually quite lonely

[bcrdukes]

Time for a socially distanced Revscene dyno day

(Brings back good memories when we all just lined up and did our dyno runs for 8 hours straight back to back.)

[Akinari]

Guess I shouldn't be excited for that Shell they're building a 30-sec drive away from my condo anymore...

[bcrdukes]

C'mon guys. It's not like you're dyno tuning your cars every day and monitoring your A/F ratios and knock every 2 hours of the day.

[68style]

Bro. I dyno my car every time I go out, you never know when a race is coming, got to be ready!

[bcrdukes]

That's true.

[underscore]

Originally Posted by bcrdukes

C'mon guys. It's not like you're dyno tuning your cars every day and monitoring your A/F ratios and knock every 2 hours of the day.

I was til my Innovate shit the bed! Now I get to play boost roulette every time I start the car.

[Expresso]

Originally Posted by bcrdukes

C'mon guys. It's not like you're dyno tuning your cars every day and monitoring your A/F ratios and knock every 2 hours of the day.

But the Access Port does tell me if I'm pulling timing or experiencing knock.

In any case, can't wait for the next video which is apparently out tomorrow.

[bcrdukes]

Definitely a must for me while I'm stuck on the 401 and Gardiner Expressway.

[TouringTeg]

I would like to see Chevron 94 vs Shell 91

[trollface]

I always fill up my car with 50% Shell V power and 50% Chevron with Tecron.

Together I get Vtec.

[jjson]

Originally Posted by TouringTeg

I would like to see Chevron 94 vs Shell 91

Part 3 of his testing which will show Chev 94 vs Shell 91 is coming out Tuesday morning

[320icar]

So I finally watched part 1 and 2, and I agree #biasconfirmation

A few years ago with my stock focus ST (250hp/272tq rated) my buddy and I went to racing greed. Beforehand my friend was telling me all about shell 91 etc. Up to that point I had always been a chevron guy but I took his word for it. Ended up putting down 187hp/225tq. I know the manufacturer rates flywheel hp but my car felt like crap, pulled lots of timing etc.

Went back the next year on an off the shelf stage 1 cobb tune (on chevron 94) and did 265whp/330tq.

[k3mps]

In my 10 years of driving, I have exclusively put in Shell in my cars.
Now that I have 2 cars that require premium, his findings are quite interesting.
I guess I'll stay tuned for part 3.

Airmiles are also nice from Shell as they run decent promos for bonuses if you fill up a certain amount, which I do because I drive a ton.

If the findings in part 3 are significant then I'm willing to switch to Chevron 94.

Does Chevron have a rewards system like Airmiles is to Shell?

[Traum]

Originally Posted by k3mps

If the findings in part 3 are significant then I'm willing to switch to Chevron 94.

Does Chevron have a rewards system like Airmiles is to Shell?

https://journie.ca/en-CA

But I find that it kind of sucks.

[SkunkWorks]

Originally Posted by Traum

https://journie.ca/en-CA

But I find that it kind of sucks.

3 cents off a litre is decent if you've a CIBC card.

[twitchyzero]

buck fiddy off per fuel-up haha

#reopentheborder

[BIC_BAWS]

Originally Posted by Traum

https://journie.ca/en-CA

But I find that it kind of sucks.

7C/L after you hit 300 points. Can fill up to 100L. Time to bring out the jerry cans again lel

It's not a great rewards program, but Chevron is 1 min / 500m from my house, so it's pretty much a no brainer.

[snowball]

In his comments people have asked him to compare Shell 91 vs Esso 91 vs Chevron 91 but he says he won't do it because the Chevron 91 is probably equally as crappy. Unfortunately this doesn't really help me since I used to interchangeably fill up with Shell/Chevron 91 because my car really doesn't warrant 94.

So this test doesn't really confirm that Chevron is better than Shell overall, it just confirms that for max performance vehicles the top tier Chevron is better than Shell. Shell 91 and Esso 91 dyno'd the same... Now if he did a comparison of 87 for all major brands, it would probably be more relevant to the common person.

[Manic!]

Needs to do petro 91.

[smoothie.]

Originally Posted by snowball

In his comments people have asked him to compare Shell 91 vs Esso 91 vs Chevron 91 but he says he won't do it because the Chevron 91 is probably equally as crappy. Unfortunately this doesn't really help me since I used to interchangeably fill up with Shell/Chevron 91 because my car really doesn't warrant 94.

So this test doesn't really confirm that Chevron is better than Shell overall, it just confirms that for max performance vehicles the top tier Chevron is better than Shell. Shell 91 and Esso 91 dyno'd the same... Now if he did a comparison of 87 for all major brands, it would probably be more relevant to the common person.

isnt shell 91 priced similar to chevron 94 though?

[Traum]

The latest video is out:

YouTube (Short URL)

Chevron 94 #1 - 288.616 hp / 277.946 lb-ft
Chevron 94 #2 - 281.667 hp / 280.873 lb-ft
Shell V-Power #1 - 246.167 hp / 263.629 lb-ft
Shell V-Power #2 - 243.493 hp / 264.637 lb-ft

All gas were confirmed to be winter blends as the filming was done in Nov 2020. Adam will do a summer blend comparison next year when the time comes again.

Now, while watching the video, it occurred to me that the car have had some time to adapt to the Chevron 94's timing. Would the results have been different had Shell 91 been tested first? That'd be interesting to see.

[underscore]

I don't have time to watch it atm, but I assume they're totally emptying the tank between tests. What are they doing to reset/relearn the ECU between tests?

[Expresso]

Originally Posted by snowball

In his comments people have asked him to compare Shell 91 vs Esso 91 vs Chevron 91 but he says he won't do it because the Chevron 91 is probably equally as crappy. Unfortunately this doesn't really help me since I used to interchangeably fill up with Shell/Chevron 91 because my car really doesn't warrant 94.

So this test doesn't really confirm that Chevron is better than Shell overall, it just confirms that for max performance vehicles the top tier Chevron is better than Shell. Shell 91 and Esso 91 dyno'd the same... Now if he did a comparison of 87 for all major brands, it would probably be more relevant to the common person.

The common notion was that Shell 91 performed on par with Chevron 94 and both seemingly priced the same.

[Traum]

Originally Posted by underscore

I don't have time to watch it atm, but I assume they're totally emptying the tank between tests. What are they doing to reset/relearn the ECU between tests?

He is emptying the tank from the fuel lines between different types of gas, but he did not mention what he has done as far as resetting the ECU or re-learning the fuel trim is concerned.

From Part 1 and Part 3, however, he did mentioned that the car has been running on the type of gas he started the test with for a while -- Chevron 94 blended with E85 to give an E17 blend in Part 1, and pure Chevron 94 in Part 3. So we can only assume at the start of those tests, the ECU has at least adjusted to the starting fuel to some sufficient degree. Had Shell been given the chance to learn the fuel trim, I suspect its numbers would be better than what we've seen in the test, but it'd be too much of a stretch to make up for that 40hp deficit.