My Winter Observations
11-15-17, 10:42 AM
#1
Pole Position
Thread Starter
My Winter Observations
It's getting cold here in the greater Toronto, Canada area, and some differences I've noticed in this engine when cold vs. my older late 1990s to mid 2000s engines are listed below. You guys notice the same in your IS350s?:
1. It revs very very high after cold start up, like sometimes up to 1,750rpm
2. Some engines get coarse when cold revving. This one remains very smooth and feels free revving even when you're driving it cold
3. When just started cold a few minutes ago, and idling at a red light, it revs at like 1,000rpm. You really need to keep that foot on the brake pedal because the car feels like it wants to run away, or a dog pulling ahead on his leash. I figured this is deliberate programming so the engine can get to normal operating temp ASAP
4. The handling is still pretty nimble even with narrower snow tires. I have Pirelli Ice Zero FR on 17" F-Sport replicas. I didn't go crazy on the on-ramp with the cold, but the car still felt very stable and inspired confidence
1. It revs very very high after cold start up, like sometimes up to 1,750rpm
2. Some engines get coarse when cold revving. This one remains very smooth and feels free revving even when you're driving it cold
3. When just started cold a few minutes ago, and idling at a red light, it revs at like 1,000rpm. You really need to keep that foot on the brake pedal because the car feels like it wants to run away, or a dog pulling ahead on his leash. I figured this is deliberate programming so the engine can get to normal operating temp ASAP
4. The handling is still pretty nimble even with narrower snow tires. I have Pirelli Ice Zero FR on 17" F-Sport replicas. I didn't go crazy on the on-ramp with the cold, but the car still felt very stable and inspired confidence
11-15-17, 02:03 PM
#4
Lexus Test Driver
Join Date: Feb 2017
Location: Richmond Hill, Ontario, Canada
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Cold start idle really depends on the ambient temp that the vehicle is sitting in.
One winter when it was effing cold, at least -25C, I jumped in a 2004 Corolla and fired it up, the revs jumped to 2100 RPM instantly.
And yes, it is to get the vehicle to normal operating temp as fast as possible.
Contrary to popular belief, the vehicle will actually warm up faster if driven, opposed to sitting an idling.
Usually a minute idling in very cold temps is good enough, and then driving gingerly until it gets up to temp.
Plus, 15 minutes of idling isn't good for the engine internally either...talk about buildup.
One winter when it was effing cold, at least -25C, I jumped in a 2004 Corolla and fired it up, the revs jumped to 2100 RPM instantly.
And yes, it is to get the vehicle to normal operating temp as fast as possible.
Contrary to popular belief, the vehicle will actually warm up faster if driven, opposed to sitting an idling.
Usually a minute idling in very cold temps is good enough, and then driving gingerly until it gets up to temp.
Plus, 15 minutes of idling isn't good for the engine internally either...talk about buildup.
11-15-17, 02:07 PM
#5
It's getting cold here in the greater Toronto, Canada area, and some differences I've noticed in this engine when cold vs. my older late 1990s to mid 2000s engines are listed below. You guys notice the same in your IS350s?:
1. It revs very very high after cold start up, like sometimes up to 1,750rpm
2. Some engines get coarse when cold revving. This one remains very smooth and feels free revving even when you're driving it cold
3. When just started cold a few minutes ago, and idling at a red light, it revs at like 1,000rpm. You really need to keep that foot on the brake pedal because the car feels like it wants to run away, or a dog pulling ahead on his leash. I figured this is deliberate programming so the engine can get to normal operating temp ASAP
4. The handling is still pretty nimble even with narrower snow tires. I have Pirelli Ice Zero FR on 17" F-Sport replicas. I didn't go crazy on the on-ramp with the cold, but the car still felt very stable and inspired confidence
1. It revs very very high after cold start up, like sometimes up to 1,750rpm
2. Some engines get coarse when cold revving. This one remains very smooth and feels free revving even when you're driving it cold
3. When just started cold a few minutes ago, and idling at a red light, it revs at like 1,000rpm. You really need to keep that foot on the brake pedal because the car feels like it wants to run away, or a dog pulling ahead on his leash. I figured this is deliberate programming so the engine can get to normal operating temp ASAP
4. The handling is still pretty nimble even with narrower snow tires. I have Pirelli Ice Zero FR on 17" F-Sport replicas. I didn't go crazy on the on-ramp with the cold, but the car still felt very stable and inspired confidence
11-16-17, 08:17 AM
#6
drives cars
Cold start idle really depends on the ambient temp that the vehicle is sitting in.
One winter when it was effing cold, at least -25C, I jumped in a 2004 Corolla and fired it up, the revs jumped to 2100 RPM instantly.
And yes, it is to get the vehicle to normal operating temp as fast as possible.
Contrary to popular belief, the vehicle will actually warm up faster if driven, opposed to sitting an idling.
Usually a minute idling in very cold temps is good enough, and then driving gingerly until it gets up to temp.
Plus, 15 minutes of idling isn't good for the engine internally either...talk about buildup.
One winter when it was effing cold, at least -25C, I jumped in a 2004 Corolla and fired it up, the revs jumped to 2100 RPM instantly.
And yes, it is to get the vehicle to normal operating temp as fast as possible.
Contrary to popular belief, the vehicle will actually warm up faster if driven, opposed to sitting an idling.
Usually a minute idling in very cold temps is good enough, and then driving gingerly until it gets up to temp.
Plus, 15 minutes of idling isn't good for the engine internally either...talk about buildup.
11-16-17, 05:57 PM
#7
My 2008 GS350 will not move when temps are below 0.. Its almost as if the car is in neutral when its actually in gear. I have to warm it up for about 5 to 10 min. then it will start to roll.
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