Mobile Mechanic & Auto Detailing in Denton, TX

A 4.8-mile rebuild where I-35E and I-35W split

Denton is the point where Interstate 35 divides into I-35E, which runs toward Dallas County, and I-35W, which runs toward Tarrant County. TxDOT's fact sheet for the I-35 Corridor and I-35E/I-35W Interchange Project, the spring 2025 edition, gives the limits as North Texas Boulevard to US 77 north of Denton, a length of 4.8 miles, at an estimated cost of $583 million. The work widens I-35 from four to six lanes, rebuilds the interchange and expands the frontage roads from four to eight lanes.

A Cross Timbers Gazette report from June 30, 2026 described overnight ramp closures at the merge, 9 p.m. to 5 a.m., including the northbound I-35E off-ramp to southbound I-35W and the southbound I-35 off-ramp to Oak Street, with signed detours and some frontage roads closed. Closure schedules change, so check TxDOT's project tracker before you drive. The June report gives fall 2029 as the expected finish, attributing it to TxDOT, while the spring 2025 fact sheet listed summer 2029, so treat the end date as approximate.

Storm drains, Lewisville Lake and the city's wash-water guidance

The City of Denton's Residential Watershed Protection page says non-point source pollution comes from everyday sources, including homes, yards, cars and pets, and calls it Denton's leading cause of water quality degradation. It says a storm drain empties to Lewisville Lake, a primary source of drinking water for much of the DFW Metroplex. The city says anything that can be picked up with rainfall runoff can end up in the watershed, and the National Weather Service's 1991 to 2020 normals for Denton list May (4.86 inches) and October (4.64 inches) as the wettest months, out of 38.44 inches a year.

Two city documents mention washing vehicles. The Stormwater Management Plan, written for a 2019 to 2023 permit term, lists individual residential vehicle washing among occasional incidental discharges that are allowed unless they contribute significant amounts of pollutants. The city's Residential Watershed Protection page also lists car wash wastewaters among common sources of illicit discharges, and the plan was written for a permit term that ended in 2023, so do not read it as permission. A separate city booklet on pressure washing, dated August 2018 and revised May 2021, applies to contractors, businesses and homeowners and lists vehicles among the things that get pressure washed. It says pressure-washing wastewater may not go into a storm drain, roadside ditch, gutter or drainage channel in Denton, that even cleaners labeled biodegradable or non-toxic may harm aquatic life, and that wastewater containing soap or detergent may not be left on pavement to evaporate.

The city's FAQ cites Section 26-189 of its code of ordinances as prohibiting discharge of pollutants to a storm sewer or natural outlet unless suitable treatment is in place or a federal discharge permit has been issued, and says fines could reach up to $2,000 per violation, per day. The booklet describes itself as guidance, and neither document is a ruling on any particular driveway; the ordinance is local law. Confirm with the city's Watershed Protection office, listed at (940) 349-7153, before assuming a rinse is fine.

Used oil and automotive fluids at the Home Chemical Collection

Denton's Home Chemical Collection, at 1527 S. Mayhill Rd., Building 300, accepts automotive fluids and fuels and used motor oil from City of Denton residents only. The city's page says chemicals must be in their original labeled containers, except used motor oil and cooking oil, which go in a container with a screw-top lid. The limit is 10 gallons of liquid or 50 pounds dry weight per collection. Drop-off runs Monday through Saturday, 7 a.m. to 4 p.m., and curbside pickup can be scheduled. Tires and commercial waste are not accepted. Hours and rules can change, so check the city page before you go.

A drip on the pavement is a separate question. The city's pressure-washing booklet suggests dry methods first, such as absorbents on small oil spots and sweeping, picking the debris up promptly so it cannot reach a drain. The booklet cautions that this pre-cleaning waste may be identified as hazardous waste and require special management, and it points to the Texas Commission on Environmental Quality's small business assistance program for hazardous-waste determinations; the city's Watershed Protection office is the local contact. It also warns that pressure washing a surface with free-standing oil or antifreeze on it may generate hazardous waste.

Cedar pollen in winter, then sap, droppings and insect eggs on paint

A January 2026 Cross Timbers Gazette report on cedar fever, addressed to Denton County residents, says mountain cedar releases pollen in winter, typically from mid-December through February, with peak levels often arriving in mid-January. Southwest winds carry it across large portions of the state. AAA Auto Club Group's paint-care guide says factors like dirt and pollen can diminish a car's shine and even damage the paint.

Consumer Reports describes what else can land on paint. Tree sap drops shrink over time and stress the finish because of the strong bond with the paint, bird droppings act similarly, and when the sun scorches insect eggs the decomposing material can etch certain finishes. The article notes that the finish on today's cars holds up much better than paint jobs from 20 years ago, and PPG's Dennis Taljan told the magazine that newer finishes are designed to resist a wide range of environmental assaults. It still describes sap, bird droppings and sun-scorched insect eggs as potential causes of damage to certain finishes.

UNT campus parking and the park-and-ride at Med Park Station

The University of North Texas and Texas Woman's University are both in Denton. UNT Transportation Services says parking availability is limited and offers UNT Transit as an alternative. Its student parking page names the Med Park station as an off-campus option where students can park for free and ride the Colorado Express line to campus for free. Tim serves Denton and comes to the customer's location.