RehabJP
Senior Member
- First Name
- JP
- Joined
- Jul 22, 2020
- Threads
- 34
- Messages
- 281
- Reaction score
- 149
- Location
- Costa Mesa, California
- Website
- www.stoneautotech.com
- Vehicle(s)
- 2020 Civic Si Coupe
- Thread starter
- #46
I usually use Pennzoil Synchromesh Transmission Fluid in cars I work on and was planning on using that and after reading the comments on here seems like a good idea to run maybe 0W-30 engine oil with high wear protection. As far as breaking it in I try to take it easy but sometimes I cannot help myself. That is why I bout the extended 100K 7 Year warranty Bumper to Bumper. LOL Seriously I do try to take it easy on her but she wants to go fast sometimesAlthough the owner's manual regards the first 1500 miles as a break in period, it is a long slope. The original engine oil is designed to reduce heat and allow proper break in, reducing potential for glazing. The cylinder walls were plateau-honed and the engine had good oil and was warmed-up but you are way shy of being done with break-in ESPECIALLY when it comes to the gearbox. Full gearbox/clutch and engine is not broken in until North of 7500 miles. Before you have reached 1000 miles, you should not exceed 4k RPM and starts should be with light throttle. The synchros need time to break in and everything is just way too new right now.
I have money-shifted I think 3 times and misshifted like over 5 times. Unless you are on a mission to destroy your powertrain and get new units, I would recommend major changes. 60k may seem like a long time away and maybe it is based on how much you drive but for me it happened quick. I am at 77k now. I know I still have compression. I recommend better oil than 0w-20. Also, gear oil should not be this super-lite Honda crap. Put a little heavier and protective stuff in there designed for syncros. You can do that now. The gates will feel more distinct and you will be far less likely to cause full grinds like in your 1-2 shift. Give it time and give your shifts time. These cars require manual rev-matching. It takes like a year at least before you kind of memorize the multiplication tables, and blip the throttle or wait properly however many milliseconds it takes. People will tell you that tuning will reduce rev hang but I am not tuned, so I can't tell you how much it can or will.
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