Cold engine rev.

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  #1  
Old 11-17-05, 06:06 PM
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Cold engine rev.

I have a 2005 Scion TC. 2.4l 4 banger. 6000 mi.

I know that it not good to rev a cold engine. My dealer (car that is) told me that "these modern engines don't have to be broken in. hell, you don't even need to let them warm long" With modern computer controled engines how long does it have to warm up to be safe?
 
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  #2  
Old 11-17-05, 09:37 PM
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dealers can't be trusted by much some of the time. what oil grade? what oil for that matter? no matter what he said about breaking in, they do need to be broke in. maybe a minute or so would be alright, just a little bit so the oil can flow everywhere.
 
  #3  
Old 11-18-05, 10:37 AM
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v8driver,
I had the dealership change the oil the first time, because it was free. I just called the dealer and asked them. They say Pennzoil 5w 30 all weather petrolium based oil. I know that pennzoil is not a good oil. Especialy the petro based ones. I think that they use it because I live in PA and they get a deal. What type of oil should I switch to? The engine is 2.4 L, aluminum block 4cyl, with a supposed 162HP. redline is about 6500 rpm (and it gets there often). I use high grade gas, typicaly Exxon, Shell, 76, or Sonoco 92 or higher (when I can find it) Octane. I am thinking Mobil 1 Super Syn. I figure if it is good enough for Corvette, Porche, Lamo, and Ferrari then it should work for my 4 banger, unless there is a better one.

Just out of wonder, how is Royal Purple oil? I have heard alot about them, but can't find any stats on the oil.
 
  #4  
Old 11-18-05, 12:17 PM
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actually, pennzoil from the old days i guess still have a bad rap for sludging, not so today, its actually one of the best petro oils. site i frequent, show havoline actually being a great oil as well. if you want to go mobil one.......great oil, use it alot, flows extremely great in the cold, so it gets where it needs to get flowing wise. as for royal purple. i would stay away from it, it's pricey, and just as good as mobil. another oil if you could find it, would be amsoil, another great synthetic oil to use.
 
  #5  
Old 11-18-05, 07:26 PM
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Scion is toyota, and Toyota runs(breaks in) thier engines from the factory, so hes sort of right, but its usually a good idea to take it easy for the first few thousand miles.

Also He doest knwo what hes talking about with the"not warming up" part. OF course you need to let it warm up. Usually, You want ot get in, start the car, Close the door, and put on your seatbelt, plus give it anoter few seconds. This is generally good 'nuff. The purpose of letting an engine warm up is to let all components expand (because of heat) and get oil up into the heads and upper piston rings.


Jim
 
  #6  
Old 11-19-05, 06:32 AM
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my rule of thumb

My rule of thumb is I keep the rpms low till the temp guage is were it should be.
The engine needs time to get to temp.I just drive and shift at the lower rpm range in all gears,
 
  #7  
Old 11-19-05, 05:48 PM
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Don't forget that dealer is the same guy who wants to sell you your NEXT car when this one is worn out (and preferably sooner than later)!
 
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