|
|
|
04-22-2014, 05:53 PM | #1 |
Private First Class
75
Rep 148
Posts |
temperature gauge question:
I'm curious if other's gauges register like the one in my wife's 135i. It takes several miles to start climbing above 160 and generally settles in at about 2 marks below 250. Assuming that represents 220-230 degrees, I've never owned a car that runs that hot. Is this where others are seeing their gauges??
__________________
2016 M235i convertible
2016 Mercedes AMG GTS 1966 Corvette roadster |
04-22-2014, 05:59 PM | #2 |
Civil Rights Activist
115
Rep 949
Posts |
Yup, that sounds about right. Mine operates at 220-230 with normal driving (as per both the Cobb AP and the dash gauge.) When it's hotter out, if I abuse her a little bit for a few minutes, I will see oil temps of 250. It's not uncommon to see slightly higher temps during tracking.
__________________
E88 Crimson Red Vert MSport 6MT - Listing your mods in your signature is lame. BMS DCI/MHD E30 Flash!!/AA Sport FMIC/VRSF CP w Tial BOV/VRSF 3" DPs/550i clutch w SPEC SMFW/Apex EC-7s/Whiteline RSFB/E92 M3 FCAs/Bilstein B12 Pro Kit/VRSF inlets |
Appreciate
0
|
04-22-2014, 06:14 PM | #3 |
New Member
2
Rep 16
Posts
Drives: 2012 135i coupe
Join Date: Mar 2014
Location: The Woodlands, TX
|
I was shocked when i got mine and saw it running that hot as well.
__________________
2012 135i with M sport package
2014 subaru wrx (sold) 2008 Infiniti G37 coupe (sold) |
Appreciate
0
|
04-22-2014, 07:27 PM | #5 |
Brigadier General
368
Rep 3,547
Posts |
You know that is oil temperature, right? One advantage of synthetic oil is it breaks down more slowly at elevated temperature. Cars are made to run at higher temperature these days because it improves their thermal efficiency. I've monitored the water temperature in my 128i (using Torque) and was surprised it went pretty high even under light load. I think it is a reason we don't have a water temperature gauge.
__________________
128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09 |
Appreciate
0
|
04-22-2014, 07:53 PM | #6 |
First Lieutenant
9
Rep 385
Posts |
It takes a while to warm up because BMW measures oil temperature differently from other manufacturers. Many other manufacturers measure temperature up in the block where it heats up faster because that's where all the explosions happen. BMW measures from the crank case where it takes longer to warm up but you know when it's warm there, it's up to temperature everywhere.
|
Appreciate
0
|
04-23-2014, 08:00 AM | #7 |
Major
200
Rep 1,075
Posts |
Mine runs at the same temps as yours so I guess that's normal.
I was surprised at first too, but this is the first time I've owned a car that measure oil temp not water temp. When its cold it takes forever to warm up!
__________________
2012 135 Convertible 6MT
2017 Acura MDX |
Appreciate
0
|
04-23-2014, 08:09 AM | #8 | |
Major General
4338
Rep 6,196
Posts |
Quote:
Most cars have a coolant temp gauge, not oil temp. That is why it takes so much longer to show as "warmed up". Oil takes a lot longer to get up to temperature than the coolant, and IMHO is a much better indicator of actual engine temperature. |
|
Appreciate
0
|
04-23-2014, 10:45 AM | #9 |
Lieutenant
37
Rep 435
Posts |
You guys are lucky you have this guage. I drove like 300 miles with a bad thermostat and didn't even know it.
__________________
Enter voucher code XKRMLL for $5 off Carly adapter for BMW. For users ordering through Amazon UK or US, please contact trainer@mycarly.com PRIOR to your adapter purchase. You will receive a reply with a special voucher code. |
Appreciate
0
|
04-23-2014, 11:21 AM | #10 |
Captain
151
Rep 929
Posts |
I normally run at 230-240, and that is WITH the extra radiator that is part of the PPK2. I realize the extra radiator is for the coolant rather than the oil, but it still suggests (to me) that 230-240 is the design intent for the oil system.
__________________
F87 '16 M2 ... Mineral Grey, 6MT, Exec, MPE Gone: E82 '13 135is 475/586 ... Mineral Grey / Oyster, DCT, Premium, Tech, HK, Michelin PSS, BMW Performance Suspension |
Appreciate
0
|
04-23-2014, 02:42 PM | #11 |
Captain
192
Rep 893
Posts
Drives: 135is :) 192/586
Join Date: Mar 2011
Location: LA, CA
|
240-250 for me and I don't even drive my car hard but I do go through some uphills though
|
Appreciate
0
|
04-23-2014, 03:25 PM | #12 |
Private First Class
75
Rep 148
Posts |
After looking at the manual this AM I realized that the gauge is for oil temp. It still seems so high to me, but "normal" as per your responses. The Mini S we just sold had no oil nor water temp gauge. My 911 Turbo runs a very constant 175 oil temp and 200 water temp. I'll just stop being concerned now.....
__________________
2016 M235i convertible
2016 Mercedes AMG GTS 1966 Corvette roadster |
Appreciate
0
|
04-23-2014, 06:55 PM | #13 |
Proud AARP member in good standing
28
Rep 635
Posts |
After I picked my car up in Chicago I was stuck on I-65 South in road construction and I watched the oil temp gauge rise. I started to get nervous but it didn't climb over 250.
Most likely normal.
__________________
2012 135i DCT, Lemans Blue/black leather, PPK1, PE, Stoptech Sport rotors and Sport pads, unhealthy crackles and burbles and an aging demonic driver. |
Appreciate
0
|
04-23-2014, 07:46 PM | #14 | |
Private First Class
10
Rep 100
Posts |
Quote:
|
|
Appreciate
0
|
04-24-2014, 08:00 AM | #15 |
Brigadier General
368
Rep 3,547
Posts |
Water temperature and oil temperature will follow a similar pattern but are not monitored for exactly the same reason. Water temperature is our indication of an engine overheating or not heating up. We don't have a gauge so we find it is not heating up by the heater working poorly and we find out it is overheating when the warning light comes on. I'd personally much prefer a gauge but I suspect others would be alarmed to see the rise and fall. Our cars are designed to run pretty warm so they will use less gas.
Oil temperature is to tell us about lubrication. If the oil temperature is low, it is a good idea not to try and extract maximum power from the engine (because lubrication is not ideal). If the oil temperature is high, it is again best not to push the motor but we also need to know why it went high. If it stays high for a prolonged period, the oil will start to break down. The water goes around the cylinders and heads where the temperature of the engine should be maximum so I think it will generally be hotter but it depends a lot on where the sensor is. Oil is in the same general area but also going through the mains of the engine which should be cooler and the camshaft area which also should be cooler. There won't be huge temperature variation across the engine, aluminum and magnesium are good thermal conductors, but there must be some to move the thermal energy. The thermal energy will always flow from areas of higher temperature to areas of lower temperature.
__________________
128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09 |
Appreciate
0
|
04-24-2014, 01:44 PM | #16 |
Lieutenant Colonel
118
Rep 1,668
Posts |
Yep Oil temp not Coolant. As for coolant temp i thought there was a reading that is stored in the ECU too and that is one of the indicators used to cause limp mode to engage. I just cant remember where i read it.
__________________
Enjoying an E89 Z4, F30 320i and Fiat Abarth //
E85 Z4 (sold), E82 128i (sold), Fiat Pop 500 (sold) |
Appreciate
0
|
04-24-2014, 03:52 PM | #17 | |
Captain
89
Rep 912
Posts |
Quote:
I'd be concerned with constant temperature of 175, unless there is something I'm missing. I thought oil is "up to temperature" at 212.
__________________
E82 '13 135is - Space Gray/Coral Red, 6 MT, Heated Seats, 50% tint, clear bra, BMW Perf. Grilles, BMW Perf. CF Diffuser - #180/586 |
|
Appreciate
0
|
04-24-2014, 04:22 PM | #18 | |
First Lieutenant
47
Rep 327
Posts
Drives: 2012 BMW 135i
Join Date: Apr 2013
Location: NorCal
|
Quote:
"The temperature of oil on your gauge is not as hot as it really gets. This temperature is an average with oil from different parts of the motor. Some parts are hotter than others. It is said that some of the oil gets as hot as 400° or 500°F in...racing situations." -http://www.bobistheoilguy.com/motor-oil-105/ Using oil to cool and lubricate an engine is a brilliantly complementary design. As the engine heats up, the oil gets thinner, increasing flow, which aids in cooling. Therefore, with the right viscosity (approx. 10 psi per 1,000 RPM), you have a self-balancing system. Given that different manufacturers may measure the oil temp at different places in the engine, I'm not sure it's reliable to compare from one brand to another. |
|
Appreciate
0
|
04-24-2014, 09:51 PM | #19 |
Private First Class
75
Rep 148
Posts |
I've spoken to other 911 owners and they report similar temps. My previous car, a ZO6, would stay under 150 during the cold days in Chicago. It had a large OEM oil cooler w/o a thermostatic control. I think some very high perf cars have some overkill in the oil-cooling area and keep the oil too cool in regular, non-track, situations.
__________________
2016 M235i convertible
2016 Mercedes AMG GTS 1966 Corvette roadster |
Appreciate
0
|
04-25-2014, 09:00 AM | #20 |
Brigadier General
368
Rep 3,547
Posts |
This is an interesting article on oil at high temperatures. His basic argument is that we don't need to worry about oil temperature during normal driving conditions, only on the track. When cars overheat, the oil temperature will rise a little but will remain well within the capability of the engine to handle. What at times gets out of control is coolant temperature.
http://www.bobistheoilguy.com/motor-oil-105/
__________________
128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09 |
Appreciate
0
|
04-25-2014, 11:44 AM | #21 | |
Captain
151
Rep 929
Posts |
Quote:
__________________
F87 '16 M2 ... Mineral Grey, 6MT, Exec, MPE Gone: E82 '13 135is 475/586 ... Mineral Grey / Oyster, DCT, Premium, Tech, HK, Michelin PSS, BMW Performance Suspension |
|
Appreciate
0
|
04-25-2014, 12:22 PM | #22 | |
no turbo, no auto, no iDrive, no kidding
105
Rep 425
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|