98mazdaman
New Member
- Joined
- Mar 12, 2009
- Messages
- 90
- Reaction score
- 0
- Points
- 0
- Location
- Southern OK
- Vehicle Year
- 1998
- Make / Model
- Mazda
- Engine Size
- 3.0
- Transmission
- Manual
Does anybody know how fastest the rpm's should be going to stay safe? I have 3.73 gears and run about 3000 rpms down the interstate at 75. I usually drive 65 because I don't want to be too hard on the engine. I was wondering if it really made a difference on the life of the engine. Thanks!