Ian318 Posted January 12, 2019 Share Posted January 12, 2019 Hi all took my 2015 titanium x into local ford dealer recently for service , my tyre pressures i had them same as handbook 33/26 , when i rechecked after service front they was 30/26 , maybe ford think they better with 30 in front? Anyone any thoughts or views on ideal pressures , thanks Quote Link to comment Share on other sites More sharing options...
Luke4efc Posted January 12, 2019 Share Posted January 12, 2019 30 is reasonable for winter driving. Only downside is its slightly worse on fuel economy (not really enough to be noticed. You probably use more just by deicing the car every morning). 1 Quote Link to comment Share on other sites More sharing options...
Peteven Posted January 13, 2019 Share Posted January 13, 2019 I have the same size wheels and tyres, I put 33psi in front and 30 in rear because 2 or 3 times a week I have 3 passengers. 1 Quote Link to comment Share on other sites More sharing options...
Zico Posted January 14, 2019 Share Posted January 14, 2019 Vehicle Load Normal Full Tire Position Front Rear Front Rear Variant Size psi (bar) psi (bar) psi (bar) psi (bar) All gasoline engines with manual transmission except 1.6L EcoBoost 175/65 R14* 30 psi (2.1 bar) 26 psi (1.8 bar) 36 psi (2.5 bar) 46 psi (3.2 bar) All gasoline engines with automatic transmission 175/65 R14* 33 psi (2.3 bar) 26 psi (1.8 bar) 36 psi (2.5 bar) 46 psi (3.2 bar) All diesel engines 175/65 R14* 33 psi (2.3 bar) 26 psi (1.8 bar) 36 psi (2.5 bar) 46 psi (3.2 bar) 1.0L EcoBoost and 1.5L Duratec-16V Ti-VCT 185/55 R15 30 psi (2.1 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All gasoline engines with manual transmission except 1.6L EcoBoost 195/50 R15 30 psi (2.1 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All gasoline engines with automatic transmission 195/50 R15 33 psi (2.3 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All diesel engines 195/50 R15 33 psi (2.3 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) 1.25L Duratec-16V and 1.4L Duratec-16V 195/55 R15 30 psi (2.1 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All engines except 1.25L Duratec-16V, 1.4L Duratec-16V and 1.6L EcoBoost 195/55 R15 33 psi (2.3 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All engines except 1.6L EcoBoost 195/60 R15 30 psi (2.1 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 38 psi (2.6 bar) 1.25L Duratec-16V and 1.4L Duratec-16V 195/45 R16 32 psi (2.2 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 46 psi (3.2 bar) All gasoline engines with automatic transmission 195/45 R16 35 psi (2.4 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 46 psi (3.2 bar) All diesel engines 195/45 R16 35 psi (2.4 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 46 psi (3.2 bar) 1.0L EcoBoost with manual transmission 195/45 R16 33 psi (2.3 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 46 psi (3.2 bar) 1.6L EcoBoost 195/45 R16* 35 psi (2.4 bar) 26 psi (1.8 bar) 36 psi (2.5 bar) 32 psi (2.2 bar) 1.25L Duratec-16V and 1.4L Duratec-16V 195/50 R16 30 psi (2.1 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All engines except 1.25L Duratec-16V, 1.4L Duratec-16V and 1.6L EcoBoost 195/50 R16 33 psi (2.3 bar) 26 psi (1.8 bar) 35 psi (2.4 bar) 46 psi (3.2 bar) All gasoline engines with manual transmission except 1.6L EcoBoost 205/40 R17 33 psi (2.3 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 41 psi (2.8 bar) 1.6L EcoBoost 205/40 R17 36 psi (2.5 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 33 psi (2.3 bar) All gasoline engines with automatic transmission 205/40 R17 35 psi (2.4 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 41 psi (2.8 bar) All diesel engines 205/40 R17 35 psi (2.4 bar) 26 psi (1.8 bar) 38 psi (2.6 bar) 41 psi (2.8 bar) Quote Link to comment Share on other sites More sharing options...
Zico Posted January 14, 2019 Share Posted January 14, 2019 Table above is for up to 100mph as taken from the Ford Manual online. I use 36 front and 30 (rather than 26) back with my ST 1.6L EcoBoost. Quote Link to comment Share on other sites More sharing options...
sioneon Posted January 15, 2019 Share Posted January 15, 2019 34 front and 32 rear as the car often has baby stuff loading the boot up. Grip is still good and ride isn't any different when the car has just me in it. Tyre wear seems good with this setup too. Got 4.2mm left on all corners after 18000 miles Quote Link to comment Share on other sites More sharing options...
STJAY Posted January 15, 2019 Share Posted January 15, 2019 I run with 36 all round on my ST, gives you a very good feel of the road, can be very bumpy though, as you can imagine. Quote Link to comment Share on other sites More sharing options...
Bobr Posted January 15, 2019 Share Posted January 15, 2019 My car doesn't fit anywhere in that table. 1.0L EcoBoost with manual transmission - mine has 195/50/R16 and I use 33/26 Quote Link to comment Share on other sites More sharing options...
STJAY Posted January 15, 2019 Share Posted January 15, 2019 Can't really understand the logic of only having 26PSI at the back? With the majority of body roll coming from the back, as the front will use thicker roll bars and independent suspension, it must feel like a canal boat trying to go around a corner at speed? Quote Link to comment Share on other sites More sharing options...
TimST2 Posted January 15, 2019 Share Posted January 15, 2019 8 hours ago, STJAY said: I run with 36 all round on my ST, gives you a very good feel of the road, can be very bumpy though, as you can imagine. You will have less grip and the centres of your tyres will wear faster than the edges. Sent from my SM-G900F using Tapatalk Quote Link to comment Share on other sites More sharing options...
TimST2 Posted January 15, 2019 Share Posted January 15, 2019 8 hours ago, STJAY said: Can't really understand the logic of only having 26PSI at the back? With the majority of body roll coming from the back, as the front will use thicker roll bars and independent suspension, it must feel like a canal boat trying to go around a corner at speed? Because it's front engined and all the weight is at the front. The idea is to keep the largest contact patch with the road by not overinflating. Sent from my SM-G900F using Tapatalk Quote Link to comment Share on other sites More sharing options...
Ian318 Posted January 15, 2019 Author Share Posted January 15, 2019 Some good comments thank you . Quote Link to comment Share on other sites More sharing options...
STJAY Posted January 15, 2019 Share Posted January 15, 2019 37 minutes ago, TimST2 said: Because it's front engined and all the weight is at the front. The idea is to keep the largest contact patch with the road by not overinflating. Sent from my SM-G900F using Tapatalk Don't get me wrong, I understand the principle of it, but I can't help but feel it would compromise driving characteristics. I'd rather wear tyres faster but the car drive better through corners and have more fun without feeling the cars back end is lifting. Quote Link to comment Share on other sites More sharing options...
TimST2 Posted January 15, 2019 Share Posted January 15, 2019 [mention=97947]STJAY[/mention], I use Ford's recommended 36/26 PSI for the stock 205/40 R17 Bridgestone Potenzas and haven't noticed excessive roll on the road - the stock suspension on the ST seems pretty stiff to me (and we both have the upgraded ST200 setup). Ford may have over-tyred the rear to encourage understeer (as its safer on the road), but I would have hoped that the traction control and torque vectoring would help with that? I've not taken my ST on track so I've not experienced it at the limit, but on track days you would generally aim to counteract the loss of grip due to heat build-up by letting some air out after each session, maintaining close to the road pressures recommended by the manufacturer. For high-speed driving (>100mph), Ford actually suggests 31/29 PSI for the ST, and for track use you'd probably set that 2-4 PSI lower when cold. Sent from my SM-G900F using Tapatalk Quote Link to comment Share on other sites More sharing options...
MarksST Posted January 15, 2019 Share Posted January 15, 2019 4 hours ago, Bobr said: My car doesn't fit anywhere in that table. 1.0L EcoBoost with manual transmission - mine has 195/50/R16 and I use 33/26 Fifth row up from the bottom of the list. Quote Link to comment Share on other sites More sharing options...
Bobr Posted January 15, 2019 Share Posted January 15, 2019 2 hours ago, MarksST said: Fifth row up from the bottom of the list. Got it. Thanks. Quote Link to comment Share on other sites More sharing options...
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