Herman and Operation 30MPG

[WhatAmIDoing]

My S70 was also a pizza delivery vessel in a previous life. If only they would have secured the sign properly on the roof so it wouldn't have left two big gouges. These cars really do have a massive interior. Helped a friend move out of their one bedroom apartment. We filled my car first because I parked closest, and after that there wasn't even enough stuff left to completely fill her Toyota Yaris.

[Rattnalle]

They'll also fit two full suspension mountain bikes size L and XL in the boot without folding the seats.

[WhatAmIDoing]

They'll also fit two full suspension mountain bikes size L and XL in the boot without folding the seats.

Maybe in a wagon. Not in my sedan, seats down and front tire removed.

[Rattnalle]

They'll also fit two full suspension mountain bikes size L and XL in the boot without folding the seats.

Maybe in a wagon. Not in my sedan, seats down and front tire removed.

Sedan. 854 though, not S70. Unfortunately before I started buying phones with useable cameras so no pictures.

Wheels and handlebars off but that's it I think. It was a very very tight fit though

[callahanoffroad]

A quick update, results from this tank were inconclusive, changed to 10w-30 from 10w-40 at the end of the tank. Rainy again here and had to run my AC that same day as well. Average ended up being 22.77 MPG. So that is higher than the "normal" averages, but lower than my "record" the other day. Another 5 day week this week. Should be able to have conclusive results from the oil change on Wednesday night. I have a trip to KC planned for March 8th so I should be able to get some good highway readings then.

Glad that my pizza shenanigans lifted everyone's spirits!

The thing that I am the most pleased with is the fact that my oil no longer smokes post oil change and post PCV. Nice to drive a car that doesn't smell like a lawnmower! Hahaha.

I'm considering running a few tanks of lower octane gas to see if it affects gas mileage one way or the other. In my '96 it would be mad at me if I ran anything but 91/93 octane. Any thoughts on this? If I can't raise MPG, lowering cost per mile would help. Regular (87 octane) is $0.40 less per gallon,. Which would be about the same as increasing my mpg by ~14% (3 mpg). My previous experience was that I lost about 2 mpg by switching to lower octane on my old car.

[precopster]

I still have a VVIS manifold from an OZ delivery 1995 850 sedan on the shelf if you ever need a part or two, though I think the only wearing part is the solenoid.

I once tried a halogenated carbon friction modifier in my 960's oil and it netted a 30% decrease in fuel consumption on the first fill. After that it dropped to 15% then 10% then nothing.....

There was a guy from Sweden making a control box for the VVIS system which improved driveability a few years back. He posted his gizmo's findings here and from what I recall it lowered the flap's opening revs to closer to 3,000 revs instead of the factory 4,000 revs.

A simpler design would be to add the later P2 electric brake booster circuit plumbed into the VVIS solenoid and run this at a pre-determined vacuum setting.....here I go again making something that is probably quite complex sound easy

[Teddy1975]

I'm considering running a few tanks of lower octane gas to see if it affects gas mileage one way or the other. In my '96 it would be mad at me if I ran anything but 91/93 octane. Any thoughts on this?

Volvo recommends to only use premium gas. In a pinch it'll run on regular, but not as effeciently as premium.

I base my calculations on a longer period of time instead of only comparing one tank full to the next for more accurate numbers. If you have the trip computer, use it and reset it every eg 500 miles after making a note of the average mpg.

[abscate]

Just remember in octane threads...

Us octane equals European octane - 4

So when Annika in Netherlands says she only uses 97 octane to race June in Fl, June would use 93 to match.

[Teddy1975]

Still, it isn't recommended to run on regular gas (US 87 octane/EU 92 octane) in a Volvo P80. It can be done, but the engine wasn't designed for it.

[abscate]

Volvo says minimum 87 octane for my 1999 ( or 91 in EU)

We can't afford expensive gas Teddy, it's up to almost 0.5 Euro per liter