What is the correct tire pressure for Gen 4 195/65R15 91H

It's the same in the German manual (actually I was told for another reason, that the manuals are all the same and translated from the same source, derived from the Japanese one....). This is why for example mine says that I can check the washer fluid with a dipstick, when in fact there is none and none is provided, at least in Germany....
The differences of tire pressures are actually quite unsubstantial. I have my 17" set at 2.6/2.5 bar F/R, instead of the recommended one for 3 reasons:
1) when you pump them, some air gets out when I remove the valve after inflating
2) I don't have to check the pressure *every 2 weeks* as the user manual states, rather every 1-2 months without worrying they will be underinflated, which is worse than overinflated IMHO
3) I should get better MPG, a possibly a tad less grip

So honestly, I'd set them to 2.5 overall and forget them for a couple of months. I don't think that 0.3bar difference, assuming one could pump them all precisely at this level, will make any difference whether you have a full spare or not at the back.

 

For vehicles WITHOUT a full-size spare, My Three model owners's manual (15" tires) shows a simple front-to-rear / rear-to-front rotation pattern. (No crossover.)

And for models WITH a full-size spare, the rotation pattern in my manual is different than what booke02 posted. (No X crossover.)

I wonder why all the inconsistencies??? Why is the North America owners's manual different from other parts of the world? Same thing with oil viscosity...

 

Thanks booke. It was interesting, (and confusing) when I was shopping for my 2016 Prius. I noticed all the non-touring models (Two, Two Eco, Three, and Four) were equipped with various tire brands:

Yokohama
Toyo
Dunlop
Bridgestone

You could pick and choose. I saw 3 Red Prius with different tires. And 3 Silver Prius with different tires. All the White Prius seem to have either Toyo or Yokohama. A lot of the Silver and Black ones had Dunlop. (But if you step up to the touring models with the 17" tires, they all had Bridgestone.)

And the tires on the Two "Eco" were no different than the other Prius models. The Dunlop or Yokohama tires on the Eco were also found on the other models I looked at. Same exact tire. (The Eco tire is just inflated a little higher, that's all. Nothing different about it that I could tell.)

(And I have no idea if any of those tires are "non-directional", or directional, or whatever. )

 

I just finished watching Season 3 of Line of Duty (British Police Procedural). All I can think: if they got Toyota in the interview room for 10 minutes, discussing all the discrepancies, they'd be confessing to anything, lol.

 

The North American Owner's Manual stipulation to keep tires on one side wouldn't be due to tires being directional or not (most aren't I would think). Not sure what their rationale is.

 

Directional tires are clearly marked on the sidewall usually with a BIG arrow showing direction of travel.

 

Toyota isn't purposely being confusing. The world is varied and different. Standards and rules are different in different places. Just because the car looks the same and has the same name doesn't mean they are identical beneath the sheet metal.

BITOG forum will have finer details but the oil recommendation basically depends on temperature and fuel economy. There's different bumper height regulations. We see 4 cylinder cars pull trailers in Europe but not in North America. You think that's just a change in the North American manual by the lawyers? There could be structural changes in the car as well.

We know Europeans like a firm sporty ride. (Or it's a myth they tell us Yanks.) Us fat Americans like a cushy ride, hence lower tire pressure recommendation plus whatever suspension optimization Toyota makes. Europeans like to pay their wait staff living wages so they don't have to pay tip. Americans likes to pay low income taxes so we can pay doctors instead of having universal health care.

I think of tire pressure, rotation scheme, oil viscosity as Safari on your iPhone. Use it if you like, download another browser if you don't. Apple doesn't discourage it, however, they won't help you if you have a problem with Chrome, they will if you have a problem with Safari. In the US, we like football. The rest of the world likes football. It's the same name, but we play it a little differently.

 

I haven't noticed any big arrow on my Toyo tires.... This time I checked them with a magnifying glass. No arrow; Made in 2015; (Japan); Treadware: 300; 2 steel belts/1 polyester; Sidewall 1 polyester; Max tire pressure: 44 psi. (Door placard says 36/35). I think 40 is a good compromise. And I will stay with the simple tire rotation of front-to-back.

It must be my driving style, but I've never gotten more than 21,000 miles from a set of OEM factory tires. My 95 Camry had Goodyear, and my 05 Camry had Bridgestone. It will be interesting to see how the Toyo's do on my Prius.

 

When it's time to get new tires...


Michelin Premier A/S 195/65R15 Tire 91H: Tires : Walmart.com

 

I have about 3000 miles on mine and love them. best tire I have ever had for quietness, handle well, and hydroplaning resistance.

 

Toyota picks low RR tires for Prius - Tire Business - The Tire Dealer's No. 1 News Source

apparently many different brands of tyres were selected as oems for this Prius...


iPhone ?

 

Mine was fitted with Bridgestone Ecopia EP 422 Plus. Only had 500km so far so not sure how quiet and comfortable it would be. Interestingly the psi was 40 when I received the car from the dealer but they set it back to 36 psi when I did one month free inspection.

 

Prius Two Eco, as has been seen on this forum, has had some of the same tires as regular models.

I'd set the tire pressure to your preference, using the Toyota minimum guidelines (so, 32 PSI all around it appears) as minimums, and the sidewall as maximums.

I'm at 40.5 PSI front, 40 PSI rear, myself. I prefer a firmer ride, the higher pressure will keep it from rolling onto the sidewall in aggressive cornering, fuel economy will be improved, and it'll stay in the recommended range for longer.

 

I noticed the one side tire rotation in my Toyota manuals, while our domestic ones still have the crossover one.
I wonder how much say the dealerships have in this.

It's actually down to different trailer regulations, with the European ones resulting in less tongue weight on the car. So they can pull more weight, but have to stay below 60mph or the trailer will become unstable.