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MON - FRI: 9:00AM - 5:30PM (EST)
SAT: 9:00AM - 3:00PM (EST)
Formulated with premium Pennsylvania Grade base oil combined with Dirven's High Zinc (ZDDP) or low-detergent additive package delivers a synergetic chemical balance, producing enhanced break-in protection. Formulated to protect flat tappet, overhead, and roller cam engines during the critical break-in process, GP-1 reduces engine wear while promoting proper piston ring seal. GP-1 Break-In 30 doesn’t require any additional ZDDP or break-in additives, and it can be used for both dyno tuning and initial street use. Viscosity typical of SAE 30.
Features & BenefitsBuy with confidence If you encounter any issues with your product, simply reach out to us. We are committed to ensuring your satisfaction and will assist with any return or exchange requests that meet our policy guidelines.
We assure you that we ship all the parcels received on the same day till 12 pm standard central time.
We send shipment tracking numbers via email. It is sent to the email address you provided in your order. If you would like to change the email address you provided, Feel free to contact our support team at (support@part-synergy.com).
We are here to serve you. If there is any item that is damaged or needs to be exchanged or returned for any reason, please contact our support team(support@part-synergy.com). Please read our return and exchange policy to learn more about this.
All orders are free of shipment costs. The cost mentioned on the website is for getting it to your doorstep.
Please do get in touch with our customer support as they may be able to provide you with a return label which will cost you much less. But if you still need to send an item back, here is our shipping address.

| 1 Day | 2 Days | 3 Days | 4 Days | 5 Days | 6 Days | 7+ Days | |
|---|---|---|---|---|---|---|---|
| If Picked Up On | Will be delivered by | ||||||
| Monday | Tue | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
| Tuesday | Wed | Thu | Fri | Mon | Tue@ | Wed@ | Thu= |
| Wednesday | Thu | Fri | Sat | Tue | Wed@ | Thu@ | Fri= |
| Thursday | Fri | Sat | Sun^ | Wed | Thu@ | Fri@ | Mon= |
| Friday | Sat | Sun^ | Mon | Thu | Fri@ | Mon@ | Tue= |
| Saturday | Tue* | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
| Sunday | Tue** | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
*Sunday^ delivery if the shipper is enrolled in weekend spotted trailer pickups
**Monday delivery if the shipper is enrolled in weekend spotted trailer pickups
^Monday if not a Sunday eligible ZIP code
@ The following week
= Earliest possible delivery the following week
This map illustrates service schedules in business days as of April 2022 for FedEx Home Delivery shipments
© 2018 FedEx. All rights reserved.
The Service Maps and charts are a general representations of transit. For more accurate transit quotes visit Shipping Rates and Delivery Times on fedex.com
Please Note: Packages picked up from a residence may have one additional transit day. For faster returns please drop off at a staffed FedEx location.