Is there a Break-In Recommendation for the GS350?
11-19-06, 06:54 PM
#1
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Is there a Break-In Recommendation for the GS350?
I am about to take delivery of a 2007 GS350 and was wondering what the current recommendations are for Break-In, if any.
When I bought my 99 GS300, they advised no speed over 55 MPH for the first 1000 Miles. They also advised using variable speeds for the first 1000 miles (i.e - Not setting the cruise down the highway for hundreds of miles at the same MPH speed)
What are the recommendations today?
When I bought my 99 GS300, they advised no speed over 55 MPH for the first 1000 Miles. They also advised using variable speeds for the first 1000 miles (i.e - Not setting the cruise down the highway for hundreds of miles at the same MPH speed)
What are the recommendations today?
11-20-06, 07:57 AM
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My dealer is about 80 miles from my house, drove back avg 75 mph. Traffic was moving a lot faster than that. No way could I go slower, even the semi's were doing 70.
11-20-06, 08:21 AM
#6
EV ftw!!!
I am about to take delivery of a 2007 GS350 and was wondering what the current recommendations are for Break-In, if any.
When I bought my 99 GS300, they advised no speed over 55 MPH for the first 1000 Miles. They also advised using variable speeds for the first 1000 miles (i.e - Not setting the cruise down the highway for hundreds of miles at the same MPH speed)
What are the recommendations today?
When I bought my 99 GS300, they advised no speed over 55 MPH for the first 1000 Miles. They also advised using variable speeds for the first 1000 miles (i.e - Not setting the cruise down the highway for hundreds of miles at the same MPH speed)
What are the recommendations today?
Basically what you already said above still applies 100%. The whole point of the break in procedure is because "Moving parts need breaking in time to adjust to each other."
Basically you start off treating the engine very gently i.e. gentle revs and never more than 1/4 throttle. Over time you gradually use more revs and more throttle until you eventually end up using the full range of the engine. It is important to eventually end up using all the power and rev range to wear harden various parts. It is also important that you do not keep to a single continuous speed or gear but vary your speed quite a bit during this time (a long highway journey is NOT a good break in if you just sit in top gear at a continuous speed). This is because things are still hardening up and you can wear a groove into them.
Modern engines break in relatively quickly, often 1000km, older designs took longer as the tolerances were not as precise. The first oil change is often a lot sooner than later ones as during break in rough edges from manufacturing will be worn off and end up in the oil.
Break in is important. All engine bearings and cylinders, etc. must wear evenly and proper. Also, piston rings need to seat. Have you ever seen a new engine burn oil until it breaks in? Some piston ring take up to 5000 miles to fully seat or wear evenly to cylinder bore. Not following proper break in procedure could result in premature engine/parts failure.
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11-20-06, 04:04 PM
#10
has anyone ever read the "hard" break-in website? it actually works.
The idea is to set your piston ring at every rpm. This can be done on a dynojet without engine braking, on an open highway, or on the track. Basically, take your car to the highest gear and make sure the rpm is a little bit higher than idle. Then you slowly raise the rpm all the way to redline, and then let the rpm slowly fall back to idle. Do this 2-3 times and your piston ring will be set at EVERY rpm from idle to redline.
Warning: Do NOT use a dynojet with engine brake! it will ruin your engine.
The idea is to set your piston ring at every rpm. This can be done on a dynojet without engine braking, on an open highway, or on the track. Basically, take your car to the highest gear and make sure the rpm is a little bit higher than idle. Then you slowly raise the rpm all the way to redline, and then let the rpm slowly fall back to idle. Do this 2-3 times and your piston ring will be set at EVERY rpm from idle to redline.
Warning: Do NOT use a dynojet with engine brake! it will ruin your engine.
11-20-06, 06:20 PM
#11
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The technician at the local Lexus dealer told me that the cars are generally broken in at the factory now so there's not really a break-in period. They advised that you should just drive as you normally would without extreme speeds. Since the ECU tends to learn the driver's speed patterns, he said to just enjoy the car without any major burnouts and you should be alright.
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11-20-06, 06:23 PM
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The technician at the local Lexus dealer told me that the cars are generally broken in at the factory now so there's not really a break-in period. They advised that you should just drive as you normally would without extreme speeds. Since the ECU tends to learn the driver's speed patterns, he said to just enjoy the car without any major burnouts and you should be alright.
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11-21-06, 07:05 AM
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To break in your Lexus, just drive as you would normally, no red-lining or going over 80, until you have reached over 1000 miles. 1000 miles and above, feel free to open it up.......safely.....wear your seat belts!!!!