Full synthetic oil offers superior engine protection, longer intervals, and better performance in Tennessee's temperature extremes. Available at both Johnson City locations with a free multi-point inspection.
$10 OFF
Full synthetic oil change - use code at either location
AIAR-SYN10
Conventional vs. Blend vs. Full Synthetic
Not sure which oil type is right for your vehicle? Here's a side-by-side breakdown to help you decide - and our technicians can always confirm the right spec for your engine.
Feature
Conventional
Synthetic Blend
Full Synthetic
Change interval
3,000–5,000 mi
5,000–7,500 mi
7,500–10,000 mi
Engine protection
Good
Better
Best
Cold weather starts
Adequate
Good
Excellent
Hot weather performance
Adequate
Good
Excellent
Turbo engine protection
Not recommended
Acceptable
Recommended
Sludge resistance
Moderate
Good
Excellent
Cost per change
Lowest
Moderate
Higher (but longer interval)
Best for
Older vehicles, high mileage
Most everyday drivers
Modern engines, imports, turbos
Benefits of Full Synthetic Oil
🛡️
Superior protection
Synthetic molecules are engineered to be uniform in size - they form a stronger, more consistent lubricating film than refined crude oil.
❄️
Better in cold starts
Synthetic oil flows immediately at cold temperatures - critical on winter mornings in Johnson City when conventional oil is still thick.
🌡️
Heat resistance
Mountain driving and summer temperatures in East Tennessee can push engines hard. Synthetic oil maintains its viscosity where conventional breaks down.
🧹
Cleaner engine
Full synthetic contains stronger detergents that prevent sludge buildup and keep engine internals cleaner over time.
⏱️
Longer intervals
Fewer visits means less inconvenience. Most synthetic oil lasts 7,500–10,000 miles, cutting your annual oil changes nearly in half.
⛽
Fuel economy boost
Synthetic oil's lower internal friction means your engine doesn't have to work as hard - which can translate to modest fuel economy improvements.
Who Needs Full Synthetic Oil?
Your vehicle likely needs full synthetic if:
✔Your owner's manual specifies synthetic
✔You have a turbocharged engine
✔You drive a 2010 or newer vehicle
✔You drive a European import (BMW, Mercedes, Audi, Volvo)
✔You drive a Japanese import (Toyota, Honda, Subaru)
✔You tow trailers or haul heavy loads
✔You frequently drive mountain routes
✔You want the longest possible engine life
$10 Off Full Synthetic - Right Now
Show this code at either Johnson City location. Valid with free multi-point inspection. Expires July 31, 2026.
Coupon Code
AIAR-SYN10
Frequently Asked Questions
For most modern vehicles, yes. The higher price per change is largely offset by the longer interval - you're changing oil roughly half as often. Add in better engine protection and potentially avoiding expensive repairs down the road, and synthetic typically wins on value.
Yes, switching is safe for most vehicles and is actually a common and recommended upgrade. Modern synthetic oils are fully compatible with conventional. The one exception: very high-mileage engines with existing leaks or gasket wear may see those issues amplified by synthetic's cleaning action - our technicians can assess this at your visit.
Most synthetic oils are rated for 7,500–10,000 miles under normal conditions. Given Johnson City's mix of mountain driving, seasonal temperature swings, and stop-and-go traffic on State of Franklin Road or Browns Mill Road, we generally recommend staying at 7,500 miles unless your manufacturer specifically calls for longer.
Yes. We carry the appropriate synthetic oil grades for diesel engines including common diesel trucks. Let us know your vehicle when scheduling or ask our technicians when you arrive.
The most common grades are 0W-20, 5W-20, and 5W-30. Your owner's manual will specify the correct grade. We stock all common viscosities and will always use the manufacturer-specified grade for your vehicle - never a substitute.
Book your synthetic oil change today
Two Johnson City locations · Free multi-point inspection · Use code AIAR-SYN10 to save $10