CMoore711
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- Joined
- Jul 18, 2017
- Posts
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Asking the question about “breaking in an engine” what determines if it’s broken in or not? How many miles how high of RPM should I go within the first *** miles for break-in? Break-in oil then normal oil etc. etc. Is like starting a thread about “What’s the best synthetic motor oil and what should I use?”
Google, research, read, then Google, research, and read some more.
The whole 3500 mile mark for engine break-in the dealer is telling you is the first I’ve heard of that “milestone”.
From my own personal experience; I had a brand new GM LS2 replaced under warranty in a previous vehicle at the dealership. For the first 500 miles I didn’t go above 3K RPM, then changed the oil (at the dealership), after that I continued to “Baby it” for the next 1K miles and changed the oil again (at the dealership). At about 5K miles on the motor it had developed “piston slap” so bad that GM agreed it wasn’t right and something was out of spec pulled that motor and put yet another completely new LS2 engine into my vehicle. This time I didn’t bother to “break-in” the motor or do extra oil changes in the first *** miles. Instead I just drove it as if I normally would from day 1 and changed the oil every 3K miles. It was the smoothest running LS2 I had ever felt, heard, or driven.
I wouldn’t consider myself any sort of “engine expert” or anything. Sure I know how they work, but don’t ask me to build one for you. I’m just sharing my own experience with new motors and “breaking” them in.
Don’t listen to what the guy at the dealer is telling you unless it’s in writing or in your owners manual because it won’t carry any weight for any reason. He’s just giving you his opionion... In my opinion (see what I did there?!?!)
Do some research, educate yourself, commit to a decision and don’t look back. The rest will fall into place.
Good luck with your new RST, they’re nice trucks.
Google, research, read, then Google, research, and read some more.
The whole 3500 mile mark for engine break-in the dealer is telling you is the first I’ve heard of that “milestone”.
From my own personal experience; I had a brand new GM LS2 replaced under warranty in a previous vehicle at the dealership. For the first 500 miles I didn’t go above 3K RPM, then changed the oil (at the dealership), after that I continued to “Baby it” for the next 1K miles and changed the oil again (at the dealership). At about 5K miles on the motor it had developed “piston slap” so bad that GM agreed it wasn’t right and something was out of spec pulled that motor and put yet another completely new LS2 engine into my vehicle. This time I didn’t bother to “break-in” the motor or do extra oil changes in the first *** miles. Instead I just drove it as if I normally would from day 1 and changed the oil every 3K miles. It was the smoothest running LS2 I had ever felt, heard, or driven.
I wouldn’t consider myself any sort of “engine expert” or anything. Sure I know how they work, but don’t ask me to build one for you. I’m just sharing my own experience with new motors and “breaking” them in.
Don’t listen to what the guy at the dealer is telling you unless it’s in writing or in your owners manual because it won’t carry any weight for any reason. He’s just giving you his opionion... In my opinion (see what I did there?!?!)
Do some research, educate yourself, commit to a decision and don’t look back. The rest will fall into place.
Good luck with your new RST, they’re nice trucks.